The big reunion trip starts to wind down as the families branch out and explore Jeju Island on their own. Later, they throw a birthday party for Ji Ohn's dad.
Baek Hyun and Chan Yeon of EXO pay a visit to the Twins and The Triplets do a storybook photoshoot. Sarang goes to an owl cafe with her grandpa. Tae Woong takes Ji Ohn to a counselor to check on her social skills.
Sarang flies up to the sky in a hot air balloon while the Twins explore their creativity. Ji Ohn continues playing with Tae Hyun's daughters and the Triplets visit a local village.
The babies enjoy the beautiful summer days! Sarang challenges Yuto at Kendo lessons, the Triplets go camping again, the Twins play in a creek, and Ji Ohn visits Dad's hometown.
The Triplets get stylish haircuts and get silly with wigs, The Twins' Daddy cooks them a healthy meal, Sarang visits the countryside, and Ji Ohn goes on a paddleboat trip for the ages.
We meet Lee Dong Gook's quintet of children. Ji Ohn goes swimming, and the Twins' Daddy does an eating challenge. The Triplets travel and Sarang goes to an amusement park.
Ji Ohn goes horseback riding. The Twins are visited by Hallyu legend Ahn Jae Wook. The Triplets and Sarang continue their etiquette lessons. The Quintets eat out.
Ji Ohn goes to a cooking class. The Quintet reunites with their mom. Sarang goes to the water for her dad's birthday. The Triplets record a song. The Twins play at home.
Sarang goes on a Korean vacation. The Quintets see their Daddy in action playing soccer. The Triplets "help" Daddy make a cardboard boat. The Twins run around the house in the buff.
Sarang goes bowling with the Twins. The Quintent's youngest refuse to go to bed. The Triplets learn where milk comes from. Ji Ohn is entertained by a famous performer.
Ji Ohn meets her Daddy's horse. The Twins get their first taste of the martial arts. The younger faction of the Quintet enjoy a day at the park. The Triplets meet a realistic dinosaur. Sarang gets adjusted to staying in Korea for the summer and plays with SNSD.
The Triplets continue their silly train ride to Busan. The Quintet visit a shopping bazaar. Sarang gives gifts to Girls' Generation. The Twins get a visit from their favorite superhero. Ji Ohn takes a dance lesson.
G-Dragon visits Sarang. The Triplets go fishing at sea. The Twins visit their ill Grandpa's hometown. Ji Ohn travels to a folk village. The Quintet have on their first picnic.
G-Dragon bids farewell to his biggest fan, Sarang. The Triplets go to a career center. The Quintet play in a pool fool of treats. The Twins visit their grandpa's hometown. Ji Ohn has dinner with Daddy.
In an extra-special double episode, The Triplets have a playdate with the Quintet. Sarang's Daddy guest teaches her kindergarten class. Ji Ohn sees a behavior specialist. The Twins make kimbap.
The Twins have their "first" day at school in Daddy's hometown. Sarang gets a special visit from the Village Teacher. The Triplets play well with the Quintet. Ji Ohn's puppy is pregnant!
The Twins must face their first blood test. Sarang tries to earn her yellow belt in Taekwondo. Ji Ohn cracks an egg. The Quintet get ready for school. The Triplets go to an air academy.
The Twins have a special gym class competition. The Quintet get haircuts as a family. The Triplets continue their stay at the military barracks. Ji Ohn hikes a mountain.
It's Ji Ohn's final episode and she visits a preschool to play with a new friend. The Triplets perfom onstage at a festival. The Twins have a camping playdate with Park Ji Yoon's children.
The Twins meet the villains from their favorite show. The Quintet's Daddy learns to braid hair. The Triplets play with construction toys. Sarang goes to Japan's Universal Studios.
The Twins go to Olympic Park and then to watch their father in a tennis match. The Triplets go to Buyeo, Chungnam to see where their father works. Sarang goes to a deer park. Lee Dong Gook takes The Quintet out for dinner.
The Triplets make their drama debut as extras. The Twins visit a kid cafe with a new friend. The Quintet goes Hanbock shopping for Dae Bak. Sarang gets a visit from celebrities!
Dae Bak does a photoshoot for his first birthday. The Twins throw Mommy a surprise party. Sarang goes shopping with Mommy. The Triplets run a marathon.
Choo Sung Hoon's big fight is finally upon him. The Quintet go to gym class. The Twins meet a cute girl. The Triplets shop for clothes and meet a mysterious robot only kids can see.