In order to save a United States Special Forces unit from certain death, the Scorpion Team must get through the very low temperatures of Antarctica to connect to a satellite in order to save the soldiers. Toby risks his life to save Happy.
Sylvester comes face to face with his estranged father, a retired colonel, who asks Team Scorpion for help when he believes that a dictator in Africa has uncovered a deadly World War II-era weapon of mass destruction and intends to use it.
Team Scorpion is tasked with helping NASA's top secret rocket launch, but they must sabotage their own mission when Walter's date from the previous night has a bomb strapped to her chest.
While Team Scorpion works to stop an influx of drugs being smuggled into the country via drones, Walter gives Happy and Toby an ultimatum on their new relationship. Penn Jillette guest stars.
After Sylvester scores big on THE PRICE IS RIGHT, Team Scorpion must infiltrate a high-end car smuggling operation about to ship bioweapons to South America
When Los Angeles' blood supply is hacked and deemed unusable because of fear it's been tainted, Team Scorpion must find the culprit in order to save a young girl in desperate need of a heart transplant.
Scorpion is sent on a secret mission to Djibouti, Africa. Cabe is captured. The Team must save him. While Walter has suspicions about the purpose of the mission and concerns over Paige's interest in new Homeland protégé, Tim Armstrong.
Team Scorpion's mission to recover the remains of fallen Marines in Vietnam is threatened along with their lives when a deadly tornado heads directly towards them.
Team Scorpion is hired by the Department of Defense to break into Fort Knox and "steal" a precious artifact in order to test their security, but they must break in a second time when they find something dangerous hidden inside the object.
Team Scorpion must find a boy from Ralph's class who goes missing on a field trip after he accidentally has a run-in with a deadly criminal; Toby gets closer to finding out the identity of Happy's husband.
Team Scorpion's simple job at the Los Angeles Natural History Musuem turns deadly when they discover thieves robbing a rare exhibit, needed to enrich a nuclear bomb.
Team Scorpion explores a deep cave system in an effort to prevent a bat population from harming the North American ecosystem; the team dons Halloween costumes for Walter's impending immigration inspection.