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1-187 of 187
- When the Omnitrix starts glitching out Azmuth comes to Earth to check on it. Until something bad happens to him. Meanwhile an evil version of one of Ben's aliens Waybig starts attacking the city and a blue Upgrade attacks Ben. The Omnitrix starts downloading things and acting weird.
- When the Tennysons are attacked by a villainous, dimension-hopping Omni-alien known only as Alien X, they soon meet a parallel universe version of Max who opens the door to hosting multiple Bens and Gwens, forming an alien hero army to combat this threat.
- When the Omnitrix's self-destruct mode is turned on the only one who can turn it off is Azmuth. But Vilgax broke out of prison and kidnapped Azmuth and is holding him hostage for the Omnitrix. Now Ben must decide. Will he give the Omnitrix to Vilgax or watch as the entire universe is destroyed.
- Faced with the looming threat of an alien invasion, Gwen manages to persuade Ben to come out of retirement and join the resistance. However, he must convince his past self to also lend a hand.
- Team Tennyson participates in the inaugural ride of the Sonitrain, the fastest train in the world, but when the conductor turns out to be Lord Decibel, Ben must derail his master plan if he is to save his family and the passengers on board the runaway train.
- After his encounter with Vilgax, Ben is trapped cycling through aliens without hope of becoming human again.
- During one last stop by a toy store before Ben, Gwen, and Grandpa Max's maiden voyage across the Atlantic, Ben runs into an old bully, Kevin 11, who now has new powers. He's able to transform into aliens just like Ben, such as the "bootleg" doppelg?nger of Cannonbolt- Wreckingbolt!
- Ben, Kevin and LaGrange find themselves stuck outside of time after the latter hijacks a supersonic train with a faulty engine, forcing the trio to team up and slow down.
- When Ben meets a young Generator Rex on the run from a hostile Providence, he must work through a series of misunderstandings, and defeat the dark wizard Hex in order to save the world.
- While Ben struggles to avoid the High Override's mind control, Max and Gwen enter the Omnitrix to lend a hand, but once they find Ben is not who he seems, Max and Gwen must pull out all the stops if they are to get Ben back in time to save the planet.
- 2016–20215.8 (42)TV EpisodeAs Team Tennyson helps transport a caged Quetzalcoatl through the Yucatan jungle, saboteur La Grange hijacks the precious cargo.
- After Tim Buktu's live stream is mysteriously cut short, Team Tennyson must attempt a rescue mission and break inside the highly confidential Area 55 in order to save him.
- When Hex mistakes an exclusive magic club for a top-secret Wizard society that snubbed him, Ben has to figure out how to work around the club's strict code of conduct to stop him without getting booted by security.
- After defeating the Warbot and discovering Vilgax inside, Ben's "secret voices" only worsen and begin affecting his sleep, but once Gwen discovers a sleepwalking Ben using missing items from the campsite to create his own massive Junkbot, it is up to Ben to stop his own creation.
- Ben has to stay in a forest to keep his transformations from endangering the public. When an alien crash-lands nearby, Ben teams up with him to take on the alien Bounty Hunters.
- When a cavity forces Ben to the dentist his day gets even worse when the malevolent magician Hex uses a nearby dream catcher to bring our hero's fears to life and transports them both to a nightmarish dreamscape.
- Team Tennyson visits the monuments of Chichen Itza, where Ben learns about the possible existence of a mythical creature.
- While inside the Omnitrix, Ben and Vilgax must work together if they are to close the gateway, but once the Fulmini leader - the High Override - appears, even that might not be enough. Luckily, help arrives in the form of a being calling itself Glitch.
- At a local swap meet, Ben instead sets his sights on a Sumo Slammer collectible, but when Kevin takes it for himself, our hero must get it back by overcoming Kevin's secret weapon: an 11th alien!
- When Gwen drags Ben along on a hike in search of the legendary Forgeti, a yeti that makes people forget they ever saw it, Ben is dubious. But with Dr. Animo on the trail of the mythical beast as well, what looks like a hoax becomes a hero time adventure for the ages, if Ben can remember it ever happened.
- While bird watching at Pinnacles National Park, Gwen and Ben get into a competition of who can spot more birds first, but their contest must be held off until they can defeat Hex,who has found a stone that allows him to create a perfect copy of himself.
- Ben hops into the Rustbuggy for a driving lesson along the sand dunes, but takes a switchback turn when the Rustbuggy is mutated into a motor-monster by Bootleg, another transformation of Kevin 11, with powers similar to Upgrade.
- Team Tennyson faces tough competition at an obstacle race. While Grandpa Max struggles to keep pace with an unbelievably fit rival, Ben and Gwen run into the Weatherheads - who've secretly masterminded this race to test mankind.
- Team Tennyson trade campfire stories in an anthology-style series that pits Ben against his archrival, Kevin 11, and teaches our hero the power of imagination.
- The Tennyson's are transporting a rare and endangered animal back to its habitat. But when Timbuc Tu frees it and controls the creature, it's up to Ben to save the day.
- After the Junkbot shoots the Omnitrix and it begins glowing neon-blue, an imprisoned Vilgax explains it is now a gateway through which the Fulmini Empire will invade Earth, but the only way to stop them is from within the Omnitrix, so Ben must team up with the ultimate baddie if he is to save his planet.
- Prohyas smuggles a Slime monster into Warriors' headquarters and things get hairy when the little guy starts to multiply.
- After the Rustbucket breaks down Ben Gwen and Grandpa Max find themselves killing time at the local town library but soon scramble to out maneuver Hex as he searches for a hidden ancient artifact.
- The Omnitrix is out of control so Ben seeks help from Max's mysterious friend to fix it; but the alien Bounty Hunters seek out the powerful watch for their own unknown purposes.
- As Team Tennyson fight to stop Dr. Animo from raiding an animal shelter, Ben faces one villain more than he bargained for - King Koil, now Animo's pet.
- Ben and Gwen are in a highly competitive paper airplane war, but when alien-tech drones bombard the Rust Bucket, the cousins must work together to ground the aerial attack.
- During a routine trip to the DMV, Max takes a driving test to renew his license, but when a disguised Zombozo hijacks the role of instructor, Ben goes alien to stop the baddie and save their family road trip.
- When Steam Smythe 'time travels' his way into a Renaissance Faire and kidnaps Max, Ben and Gwen must defeat him without breaking character.
- Forever Knight finally assembles his Round Table of young but super-powerful Knights, including- Ben?! With his squires' help, Forever Knight turns a Particle Accelerator into a Time Machine and sets out to conquer all of history, but a certain hero with a team of 10 aliens on his side has other plans- foiling Forever Knight at every twist and turn in time- while Grandpa Max, Gwen, and Phil keep the rest of the Round Table busy in the present.
- Ben and Gwen's social media battle with Kevin 11 quickly escalates into an all-out war in real life.
- Ben, Gwen, and Max's trip to Niagara Falls is cut short by the horrid Hydromanders, creatures menacing them and their fellow tourists.
- When a wizard cos player gets his hands on a real, magical wand at Comic Con, Ben enlists Gwen to help stop Hex from retrieving it by tricking the wicked warlock into thinking she is a powerful magic-wielder in her own right: the one and only Lucky Girl!
- Ben's vacation to Portland is cut short when he discovers an 11th alien while battling a Dr. Animo Mega-Creature. But when the fight leaves his Omnitrix on the fritz cycling through all 11 aliens, Max seeks help from an old friend to fix the Omnitrix as other dangerous forces seek it including a mysterious alien that's the same species as the 11th alien, Vilgax!
- In Rome, Gwen takes Team Tennyson on a self-guided tour of the many ancient sites, but when a distracted Ben accidentally stumbles upon Queen Bee's monumental heist, the hero must work together with his family if he is to save the city.
- Ben and Gwen are excited to enter a skating competition, but when Nanny Nightmare shows up to teach the skater kids some manners by turning them into babies, it's up to Team Tennyson to up their game at saving the day.
- After discovering that Vilgax has joined forces with the Weatherheads to trick him into turning over the Omnitrix, Ben must not only overcome his doubts, but fully embrace his new powers if he is to beat his foes.
- While Gwen listens to a lecture on the Transcontinental Railroad, Ben sneaks away to the gift shop. But once the Bounty Hunters appear and corner our hero, Gwen must relay the information she learned on the train and use it to their advantage to help Ben escape.
- While Phil and Grandpa Max tune-up the Omni-Copter, a restless Ben takes the Rustbuggy off road, but when he is suddenly captured by Textrax and the hunter takes the bounty for himself, our hero must not only escape but avoid the wrath of the double-crossed Kraab and Sixsix!
- When Kevin convinces Steam Smythe to adopt a modern approach in fighting Ben, our young hero must resort to old-fashioned thinking to save the day.
- Team Tennyson's quest for the best pizza in Rome leads the team to the Bugg brothers and their latest culinary caper, complete with stolen recipes, kidnapped chefs, shrunken landmarks, and a high-speed chase around the Eternal City.
- Team Tennyson travel to the new Laser Town VR but when Kevin cheats his way to the top, Ben must team up with former champ Fang if he is going to defeat his souped-up rival.
- During a book signing, Ben must stop Hex from getting his hands on a grimoire that can create hybrids.
- While on a visit to Cape Canaveral, the Tennyson Trio are present for the inaugural launch of an experimental space plane. When Vilgax commandeers the ship, Ben must stop the baddie from weaponizing the shuttle before the countdown hits zero.
- During medieval times, Team Tennyson must fight to remember that they're not in the past at all, but actually at a Renaissance-esque faire, where "King Zombozo" has hypnotized its guests into thinking they live in the past!
- Team Tennyson enjoy the biggest convention in town, but when a gawky costume store employee finds a familiar-looking helmet in the back of the store and tries it on, Ben is faced with the return of an old foe in a new form: Forever Knight.
- Ben's suspicions about his dentist are proven correct when he transforms into the monstrous Toothache.
- Ben and Gwen's camping trip is interrupted by the emotionless Weatherheads (Gust-o, Hail-o, & Shock-o) but a malfunctioning Omnitrix firing out a mishmash of aliens may not be the forecast for success.
- With new Omni-Enhancements in tow, Ben looks to save a town from a sudden mudslide, but his heroics are short lived once Vilgax appears to warn our hero about the consequences of the Omnitrix's mysterious new alien.
- Grandpa Max's engineer buddy Phil Billings gifts Team Tennyson the Omni-Copter, a state of the art flying vehicle.
- Now, with the Omnitrix, Ben can transform into any of 10 alien heroes - each with their own special powers. And Ben is going to need all the powers he can get if he is going to save the world from Vilgax and his evil alien forces.
- While visiting Lake Erie, a relaxing day at the beach gets all washed up when Ben, Gwen and Grandpa Max come face-to-face with Hex, and his summer intern, Kevin!
- After Grandpa Max's supersmart buddy Phil discovers that a second extraterrestrial item crashed alongside the Omnitrix, Team Tennyson sets off to find the second crash site before someone else does.
- Lord Decibel traps Team Tennyson inside the CD Library and demands a ransom.
- When Ben interferes with malicious magician Hex's quest for the earth-moving Titan Gloves at a swap meet, he inadvertently switches bodies with Gwen forcing him to walk a mile in her shoes... and vice-versa!
- Ben and Gwen partake in a box car race, however the race is cut short when a large robot attacks. Worse still, Ben is hearing voices in his head while transformed.
- The Tennysons find themselves stuck inside an inescapable funhouse constructed by Zombozo; Ben goes alien and fights for escape ultimately proving that behind every illusion there's a disappointing secret.
- Team Tennyson get more than they bargain for during a visit to Raspberry Park, where what they think are innocent games of chance are actually a revenge plot by Zombozo to steal the Rustbuggy.
- No one believes Ben when he insists that one of the other patrons, waiting in line at the World of Wet Water Park, is the nefarious Frightwig, disguised as a girl called Frida.
- When the Rust Bucket must tune-up in the same town as Zombozo's latest campaign trail stop, Ben soon discovers the clown is using his speeches to hypnotise then rob the town.
- As the Tennyson trio dig up dinosaur fossils in the Badlands, Ben is unaware that Vilgax and Dr. Amino have teamed up to steal alien DNA from within the Omnitrix, but once extracted, Vilgax double crosses his fellow villain. Ben must now join forces with the evil doctor to have a chance to defeat the big baddie, but can Dr. Amino be trusted?
- After Billy Billions' efforts to carve his face onto Mount Rushmore with a laser are thwarted by Ben, the billionaire brat turns his focus on removing Ben from the Omnitrix, but once he accidentally rips open a rift in space-time, the two must carefully navigate another timeline if they are to return to the present.
- After enjoying some local corn, Team Tennyson discovers a Hartfield-McJoy reenactment in the cornfield next door, but when Hex resurrects the ghosts of the real feuding families, Ben must find a way to bring them together if he is to save the day!
- While winning big on a Sumo Slammers video game, Ben gets the idea to win a wrestling match for real until an intimidating wrestler named Iron Kyle decides to make it a true challenge.
- Ben approaches Geezer Bob about doing a little yard work to earn spending money, but when Ben goes Upgrade to transform the lawnmower into a super fast mowing machine, he accidentally draws the ire of Bob's gnome-neighbors, the tiny, terrifyingly tenacious Billy-Bob Goblins.
- When Ben (and Gwen!) attempt to stay up all night for Adrenaland, the only theme park open 24/7, he not only fails to utilize his alien powers to stay awake, but his "sleep-alien-ing" causes disaster after disaster that Gwen must fix before things get way out of hand.
- When Max dozes off before a double feature, Ben and Gwen are left to save the drive-in by themselves as the evil magician Hex brings the movie monster "That" to life, and unleashes him on the unsuspecting moviegoers.
- While Max and Gwen revel in the holiday spirit of Winter Wonderland, Ben couldn't be more unamused and focused on the toys, but once the Weatherheads set their sights on Winter Wonderland as their next target, our hero must become one with his emotion if he is to save the town.
- While in Paris, France, Ben catches Zombozo robbing the Louvre, but when Zombozo hypnotizes Ben to remain speechless, Ben must navigate a foreign land like a mime in order to stop the criminal clown and his travelling circus.
- Team Tennyson head to the Okefenokee Swamp to witness the blooming of the Blushing Orchid, something that happens once every one hundred years. But their plans get disrupted when Tim Buktu, trying to make his new "reality" show more exciting, endangers the rare flower and everyone else at the swamp.
- While chilling at a monastery with a no-noise policy, Ben can't keep quiet and accidentally awakens a dangerous Dragon hidden in a secret chamber below the hallowed halls. A job that might be too much for even Diamondhead to handle.
- Ben stumbles into Dr. Animo's secret lab now ruled by his superior mutants, the Alphas, and must help the lesser animals escape while stuck as Stinkfly.
- In a peaceful coastal town, Ben must not only face the archaic antagonist Steam Smythe and his latest creation, the Clocktopus, but also his deepest, darkest fear: Squids!
- Ben is at the annual Big Bacon Pig Parade, but childhood "friend" Penny Heaven has met the family to ruin Ben's fun with her safety-obsessed self. While dodging Penny's overzealous safety precautions, Ben uncovers a plot by the BUG BROTHERS to steal helium from the parade balloons to rob banks with! Penny's badgering turns the heist into an accidental kidnapping so Ben must not only stop the robbery but save his least favorite "safety monitor" in the process.
- As Team Tennyson leaves the Frozen Man Festival, Lord Decibel takes center stage to threaten the festival-goers, creating an avalanche if his ransom isn't paid. An over matched Ben must step out of his comfort zone to save the festival from his noisy nemesis!
- Ben Gwen and Grandpa Max arrive in Bismarck North Dakota for its annual celebration of bee pollination bringing them face-to-face with Queen Bee and a bold new scheme forcing Ben to conquer his new fear of bees!
- Ben is tasked with cleaning the Rust Bucket, but when he is tricked into letting the villainous and vile Fly Guys steal it, he must chase them down before they create an unstoppable maggot monster.
- Ben and his arch-enemy Billy Billions clash in a duel for supremacy at the world's largest Laser Tag Park, LASER TOWN. But, when Billy inadvertently ignites a robot rebellion, and the lasers are set from tag to disintegrate, their childish game escalates into a full blown war! The two foes find that they must set aside their petty differences and team up in order to make it out alive, let alone save the day!
- Ben must go alien to save the Hoover Dam from disaster, but when tough guy hero Tim Buktu swoops in to "help", Ben must figure out if Tim is friend... or foe.
- When Billy Billions takes over Laser Town Studios for his birthday, Ben and Gwen challenge him to a Laser Tag Duel where the loser must never set foot in a game of Laser Tag ever again.
- When the Rust Bucket runs out of gas on a foggy East Coast road, Ben, Gwen and Max are forced to stay at a hotel being menaced by Creepy Carl, a local folklore expert, who may actually be a ghost!
- Aboard the SS Pettigrew on its final voyage, Ben must not only battle seasickness but Steam Smythe, who looks to use his mechanical creatures to sink the steamship's modern replacement and the passengers with it!
- During the Tennysons' family safari tour, Ben's self-proclaimed arch-nemesis Tim Buktu uses voodoo magic to take over Ben's mind, and tries turning him into a villain.
- During their visit to Twin City, Ben and Gwen sign up for some Laser Town awesomeness, but when Ben is teamed up with Kevin, the two must overcome their differences if they are to end up on top!
- Ben, Gwen, and Grandpa Max next travel to Castle Bishopbrook to visit a distant relative who's royalty, but when Ben encounters a "ghost" at the haunted home, it turns out to actually be his new rival, Kevin 11, throwing even more twisted aliens his way: Thornblade, Undertow, and Dark Matter!
- Ben and Gwen learn a rumor of an alien invasion happening at the park they are camping at but when they investigate they discover a preserve containing a host of mutated creatures engineered by Animo! With the unexpected help of Kevin 11 and his family, Ben proves that the rumors are false and that truth is stranger than fiction!
- Ben, Gwen, and Max are on the road and are supposed to be taking in the sights. However, Ben refuses to put his video games away, and only the return of Xingo can spur him into action.
- While trying to film his own indie film, Ben accidentally allows the Bug Gang to go free and when he takes the fight to their hidden lair Ben has to take on their narcissistic leader, the Ant Queen.
- Touring Yellowstone, Ben uncovers a plot by the fast & furious LaGrange to find treasure buried below the national park, but with a little help from Old Faithful, Overflow is able to douse LaGrange's dreams.
- While sightseeing at the Geyser Gulch National Park, the Tennyson trio uncover Steam Smythe's steam-powered generator and must shut it down before it overloads the power grid or, even worse, causes a massive earthquake that destroys the entire park!
- Left to entertain himself as Max takes a much deserved nap, Ben stumbles upon a Xingo arcade game and goes OE-Shock Rock to power it up, but when it receives too much juice, Xingo leaps out into the real world and our hero must go toe-to-toe with his favorite cartoon character.
- Ben and Gwen spend the day volunteering at Repto Ranch and come face to face with King Koil, but need to quickly overcome their fear of snakes if they are to rescue the released critters and defeat the slithery baddie.
- After Ben gets too much publicity for his alien antics in Fort Knox, a jealous Gwen feels unappreciated and looks to ease her pain with ice cream, but once she is confronted by Charmcaster looking to avenge Michael Morningstar, Gwen must prove to herself she's a worthy member of Team Tennyson if they are to survive.
- Ben, Gwen, and Grandpa Max arrive at a Native American national park to witness the Ayasha Plinths, an ancient Stonehenge-like rock formation. But when the sinister sorcerer Hex arrives, Ben must battle against a beast Hex magically made out of huge rocks!
- After traveling to Tampa Beach, Florida, Team Tennyson hopes to get some much-needed rest & relaxation, but the tempests without a temper, the Weatherheads, have other plans that Ben must thwart: to build a new beach base!
- n Aspen, Colorado, Ben, Gwen, and Grandpa Max are on a hike to find the Forgeti, but when they realize they've stumbled upon Billy Billions own "Winter in July" ski resort, Ben must battle Billy, with an assist from the Forgeti itself.
- Team Tennyson checks out a Samurai Museum in Tokyo, where Ben is too impatient to wait out the Calligraphy experience for the more exciting sounding Samurai one. But when a dangerous Samurai sword is stolen from the exhibit, Ben must take on its thief, the new Big Bad in town, the Forever Knight.
- When Ben and family go to London to visit the legendary Big Ben, the Bugg Brothers are there to greet them, with yet another outrageously over the top plan of course: to shrink the Big Ben bell in order to steal it!
- During a stop at the superstore Shopp?, Ben and Gwen are transformed into babies by nanny-gone-nuts Nanny Nightmare, who will stop at nothing to reshape the world in the image of her daycare.
- In the heart of Silicon Valley, Ben has to stop Victorian villain Steam Smythe from securing an epic power source sealed in a Tesla time capsule.
- Ben, Gwen and Max revisit their favorite amusement park, renovated and re-branded as AdrenaWORLD! Unfortunately, the new management is Zombozo and his trio of new henchmen! He's got a plan to hypnotize everyone in the park to form a criminal army. Ben has to set aside his desire to ride every ride in the park and make things right.
- Ben is more interested in a marathon of his favorite cartoon show, "Spazz", but when Ben goes Upgrade to get a better signal, the titular Spazz leaps from his animated dimension to ours, bringing mad chaos with him!
- When Gwen enters a pancake eating contest at the world famous Pancake Palace, Ben finds the Bugg Bros. and must stop them before they obtain an endless supply of what fuels their creations: Pancake Palace pancakes.
- When a mysterious electrical storm downs the Omni-Copter at the Equator, Team Tennyson soon discovers Solar & Polar are behind it, but when Ben accidentally combines the two into a more powerful Uni-Twin, our hero must think fast if he is going to save the planet!
- When Zombozo hypnotizes Grandpa Max's entire baking class it is up to Ben and Gwen to clean up the mess, but it gets even messier when Zombozo unveils his new bodyguard: Kevin 11!
- Team Tennyson's thrift store shopping is ruined by the latest high-speed heist of LaGrange - who is now aided by a super-fast electromagnetic racing car - and Ben must convince Kevin 11 to help stop the speed demon's globetrotting robbing spree.
- Ben completely ignores Gwen when she takes him to a family fun center. Meanwhile, Frightwig pushes Zombozo back into a life of crime after he ends up becoming a party clown. Now, both Ben and Zombozo will have to learn that you shouldn't ignore your friends!
- While tailgating at a State U. homecoming football game, Ben teams up with Grandpa Max's old college buddies to keep the crazy clown Zombozo from robbing the stadium blind at halftime.
- Ben, Gwen, and Max stop by the graveyard set of Gwen's favorite TV show, The Unalivers, but when Ben discovers its lead, Michael Morningstar, is an energy vampire he goes alien to show the world the real star of the show: Heatblast.
- After their attempt to get a photo with every storefront mascot is foiled, Ben and Gwen sneak out at night to get their photo with the wooden bear totem known as "Yawk", only to find he and the other mascots have come to life!
- With the Rustbucket stopped on the Midwest roadside, Ben locks himself inside with his tablet as Max and Gwen enjoy the great outdoors, until Team Tennyson is pulled into a wild Jack-a-Lope chase.
- Back stateside, Ben can't get into a cat cosplay competition, Top Tail, without a costume of his own; but when he goes Rath, a new cat-like alien with an attitude, Ben's newfound wild side quickly becomes much more than he bargained for.
- When attacked in the jungle, Team Tennyson is saved by a toddler who looks eerily similar to Tim Buktu, but when they discover it really is a pint sized version of the nefarious globetrotter, Ben knows there's another threat looming, Nanny Nightmare!
- Team Tennyson discovers that a small village's goats are being terrorized by the legendary Chupacabra, but when Ben realizes it's actually Dr. Animo, our hero must thwart the dastardly doctor before he uses the essence of the goats to power up into an unstoppable form!
- After winning a Sumo Slammers Champion belt, Ben returns to the Rustbucket to find his prize in the arms of Kevin, but when his rival hijacks the Rustbuggy instead, our hero must stop at nothing to get back what's rightfully his!
- Team Tennyson goes international in the Omni-Copter and the first stop is for a hike in the Scottish Highlands, but the weather isn't just bad, it's foggy, and that means one thing and one thing only: the return of The Fogg!
- During a tour of the Japanese Robotics Museum, Ben finds hero-gone-wrong Tim Buktu "trying to save" Tokyo from a Dragon. Has Tim finally turned over a new leaf, or is this just another one of his half-baked plans to play the part of hero?
- After Ben easily dispatches the Weatherheads, Team Tennyson travels to a ski resort for some fun in the snow but when Ben runs into the Weatherheads yet again, this time they are a force to reckon with, now that Kevin 11 has used his Bootleg powers to unlock their emotional controls!
- At the Sumo Slammers Amusement Park in Tokyo, the mischievous Twain Twins crash a sumo wrestling match to avenge their mother's medal snub years earlier at the Global Games.
- Team Tennyson looks to take in the sights of the Shoshone Falls, but when they arrive to find Steam Smythe siphoning off the water, it is up to Ben, Grandpa Max and Gwen to shut down the hydropower plant and save the Falls.
- Ben, Gwen, and Max meet a family that appears to be a mirror image of them, but when Max goes off on a hike with their matriarch, Maxine, Ben is forced to babysit Simon Sez, a brat with a Billy Billions designed backpack that turns him into a formidable robot.
- During Chefapalooza in the Rocky Mountains, three famous chefs and infamous bad-guys, The Tri-Chefta, hunt down Wildvine in hopes of creating their most exotic dish to date.
- During a live feed of the new transcontinental bullet train, La Grange enters the picture to outrace the train, but Ben joins in on the fun and will stop at nothing to come out on top!
- When Ben and Max get into an argument, Ben goes Heatblast to blow off steam against Max's wishes; but Dr. Animo spots him and subsequently turns Max into a chicken.
- After a series of reoccurring nightmares affect his sleep, Ben refuses to open up to Max and Gwen about what's bothering him, but once they realize Zombozo himself is behind it, Ben must accept Max and Gwen's help if they are going to put a stop to the terror.
- After an overpass collapses on the highway, Team Tennyson is in a traffic jam along with Simon Sez and family. But when Ben and Simon team up to tackle the gridlock together, Simon only makes matters much, much worse.
- A trip to the South Pole goes upside down when Team Tennyson lands on the North Pole instead, but Ben quickly discovers the culprits: Solar & Polar Twain, magnetically-powered scientists who want to hold the world ransom by threatening to reverse Earth's magnetic poles!
- After a battle with Kevin gets mysteriously cut short, Ben turns his attention to one upping Gwen at Space Camp. But, when his arch-nemesis, Kevin, returns with his sights strangely set on his cousin, our hero must uncover who is really behind it all, Charmcaster!
- While taking in the sights and sounds of a Rio de Jenaro music festival, Ben bristles at Gwen's suggestion that she be his new sidekick, but when the festival is threaten by the supersonic sound waves of Lord Decibel, our hero must lean on help from some familiar faces: DJ Gpa and Gwen-Cat!
- Kevin 11 gives Xingo a power up setting him loose to wreak havoc on other tv shows and it's up to Ben to stop him.
- Ben and Gwen can't wait for Omni-Copter to arrive at the Great Pyramids, but when bad disrupts their flight, they soon come face-to-face with The Fogg and its spawn: The Fogg Family!
- At the Mojave Wind Farm in Texas, Max and Gwen plan to set Ben straight on his kooky ideas about how wind works, but instead find the Weatherheads using the towering turbines for their latest nefarious plan.
- Team Tennyson go on a tour of the new Biggie Box Candy Store, but when Toothache breaks out and kidnaps the owner, it is up to Ben to stop the monstrous dentist.
- Ben, Gwen, and Max go on a tour of the impervious Fort Knox, but when Dr. Animo sicks a hungry ani-mutate on the Fort, Ben must stop it before it gobbles up the nation's monitory standard!
- Ben, Gwen and Max make a return to Max's alma mater but this time it's no homecoming. Dr. Animo has made a scary transformation and found a way to release the very dangerous animal nature of humans, including Max's life-long friend!
- When the Rust Bucket breaks down, the trio finds themselves in the last leg of an off-road auto race.
- When Max drags the kids to see a defunct "House of the Future" built by his childhood idol, Ben discovers Steam Smythe is busy excavating the joint on the search for a powerful device that will allow him to create devastating weapons for his war on progress. Only Max's devotion to his childhood idol and Ben's faith in dreams can save tomorrow... today!
- Team Tennyson travel to the Chrysalen Institute for some hot yoga and good vibes, only to find that the Bugg Brothers are on vacation, too, but are the sneaky insectoids really on holiday, or just cooking up yet another silly, yet high stakes scheme?
- At Biggie Box Japan, Ben waits in an epic line for the release of the latest Sumo Slammers video game, Cyber Slammers, but Ben must soon save the store- not from game-hungry customers, but from Steam Smythe, who wants to retro-fit a massive mech with steam punk powers!
- Forever Knight gives Billy Billions and Ben a ticket to Adrenaland, an exclusive theme park. There it comes to the conflict between the two.
- While visiting Carlsbad Caverns National Park the Tennyson's come across the Bottomless Pit a naturally formed pit with no bottom. Ben fights his better judgment to jump in the pit and be the first person to find the bottom until Kevin 11 shows up and starts to goad Ben into a contest to the bottom of the pit!
- Ben and Billy Billions go head to head over a Sumo Slammer Set sold exclusively inside the world's largest shopping center, only to find six-year-old Simon Sez has gotten it first! A battle royal ensues inside a store that seemingly has everything except an easy to find exit.
- As Team Tennyson admires the efficiency of a super modern train station, Ben is quick to sniff out one of Steam Smythe's robots holding up the line.
- While in Tokyo, Team Tennyson learns that Japan's hottest new restaurant is being run by the Bugg Brothers as a nefarious scheme to make loads of money off an unsuspecting public.
- During a tour of historic Oldeville Ben finds a rare Sumo Slammers card, but when Billy Billions comes to claim the same card Ben has to battle Billy's high-tech drones which have hijacked the Rust Bucket!
- While mini-golfing, Ben is attacked by the Ground Hawgs, a gang of Dr. Animo mutants turned bikers. When the Hawgs realize the faux mini-golf village isn't an actual town, Ben must go alien to stop them before they set their sights on the real city down the road.
- As Max attempts to get Ben and Gwen to the Four Corners Monument before sunset, an ominous fog bank engulfs the roadway.
- When Ben grows impatient with the snail like pace of gardening, he goes O-E Overflow to pick up the pace and accidentally floods the community garden, but once a giant sink hole appears and frees King Koil and his Kimodo Dragon from below, Ben must quickly right his wrong and capture the baddies if he is to save the coastal city of Bayburgh.
- All Ben wants to do is stop Queen Bee from robbing a bank, but when Kevin shows up to try and be the hero and take all the glory himself, Ben will need to save the day twice or end up in hot honey.
- While Ben, Gwen, and Max hike to a waterfall, the Bugg Brothers are back with a plan to duplicate Diamondhead; but when their cloning ray gun fires on Max instead, multiplying him endlessly, Gwen and Ben must round up all the Maxes while also fighting off the Bugg Brothers.
- During a trip, Ben and Gwen squabble, but when Max hears of a backslide nearby, the cousins must put aside their differences to rescue the trapped miners and stop Sid and Maurice from holding the city above them for ransom.
- After a lull in alien antics, a restless Ben suggests to Max and Gwen that he might be a better hero if he went solo, but once Vilgax enlists the help of Zombozo to build a giant hypno-mechanism to hypnotize the entire world, Ben must rethink his strategy if he is to defeat the super-villain team-up.
- After Ben stumbles upon a video of Cannonbolt ripping up a computer lab on the internet, Team Tennyson must race to State U to find the imposter; but once Ben discovers it is a steam-punk version of his alien that is terrorizing the campus, Ben must take down the man behind the machine, Steam Smythe!
- Forever Knight forces Ben to become a gladiator to save his family.
- When Ben sees Vin Ethanol impressed with Kevin's automotive know-how, Ben's jealousy has him convinced that he has to out-do Kevin before the older boy influences Vin to embrace his bad-guy side at a charity race.
- At a poetry slam event, Charmcaster's reading of Kevin's poetry causes magical trouble for Ben and Gwen, causing mind swaps that have everyone confused as to who's fighting who.
- Now, with the Omnitrix, Ben can transform into any of 10 alien heroes - each with their own special powers. And Ben is going to need all the powers he can get if he is going to save the world from Vilgax and his evil alien forces.
- During a family cookout at a forest campsite, Charmcaster users her magic to switch places with Gwen, but when Ben catches "Charmcaster" sneaking about, he attacks, unaware it's actually his cursed cousin!
- While visiting China, Ben, Gwen, and Grandpa Max take a trek to the Great Wall, but their adventure is nearly ruined by daredevils LaGrange and Vin Ethanol trying to jump the international monument, and Ben must hop into the Rustbuggy to chase away the fast and furious foes.
- While touring a space museum, Ben's excitement multiplies when he learns that recently discovered space stuff is being examined inside the museum's lab. Once the stuff comes to life and the shape-shifting goo replicates our hero, Ben must look within if he is to stop the case of mistaken identity.
- During a visit to the farm of Penny Bennyson's grandfather, Team Tennyson is Constantly haunted by a Scare-Crow that's come to life, Thanks to Aristocrow.
- When a new Xingo app mysteriously appears on Gwen's tablet, Ben can't help himself and activates it despite his cousin's disapproval, springing a trap that transports Ben into the animated world and Xingo into the real world.
- During a trip to Washington Ben meets a boy named Nate and his Yokai cat Jibanyan who are on the run from the Yokai patrol. When Ben transforms into an alien Nate mistakes Ben for a Yokai and uses his Yokai Watch to break the Omnitrix.
- Summer vacation is over Ben Tennyson is back at school. But when Grandpa Max takes Ben and Gwen fishing over the weekend they meet a strange creature named Paimon. Paimon takes Ben and Gwen to a mysterious Island where they help Traveller and Xiao protect the Island from evil demons.
- After months of studying his Omnitrix Phill helps Ben unlock a new set of armor called Omni-Tech armor. When Vilgax comes to attack Ben again he is surprised to see he has new armor. Ben also unlocks a new alien called Spider Monkey.