The team is tasked with helping NASA's top-secret rocket launch, but they are forced to sabotage their own mission when Walter's date from the previous night has a bomb strapped to her chest.moreless
Sylvester's estranged father, a retired general, enlists the team's help after discovering that an African dictator has uncovered a deadly weapon of mass destruction from World War II and intends to use it.moreless
The team must brave the cold in Antarctica in order to save a U.S. Special Forces unit. Meanwhile, Toby risks his life to find Happy after she gets cut off from the team and lost in a blizzard.moreless
Team Scorpion goes undercover at a university in order to find a hacker who infiltrates the Federal Reserve and threatens to collapse the global economy.
Team Scorpion and Walter's parents visit Megan in the hospital as her health deteriorates, but they end up quarantined when a deadly fungus outbreak threatens to infect everyone.
The team is blackmailed to break into the United Nations to assist in the assassination of a dangerous arms dealer; and Sylvester makes a bold move to protect Megan's wishes.
Team Scorpion helps the CIA locate a top-secret aircraft in Area 51 in order to raise money for Walter's research to save his sister's life.
The team must stop a runaway train with Paige and Ralph aboard. Meanwhile, Toby competes in his first boxing match in an attempt to impress Happy.
A nefarious virus is uploaded to Walter's computer that turns the team's new "smart" building project into a burning death trap with people locked inside.
The team goes undercover on the set of a superhero movie in Kazakhstan to dismantle a nuclear missile being sold by terrorists.
Walter, Cabe and Happy become trapped in a top-secret submarine with a limited oxygen supply and the potential to self-destruct after an explosion propels it to the bottom of the ocean.
Sylvester goes undercover in a federal prison in order to save the lives of three judges, but the team must help him escape when his life is threatened.
The team travels to Cuba to catch a Serbian war criminal after a woman from Cabe's past pleads for his help; Alana De La Garza returns as the new head of Homeland Security; and Walter meets a new friend while completing court-mandated community service.moreless
In the second season premiere, a nuclear-powered Russian satellite is knocked out of orbit and the team reunites to divert its course before it detonates over Southern California. Meanwhile, it is revealed that Paige kissed Walter, which forces them to confront their feelings for each other. Gene Simmons makes a guest appearance as himself.moreless
In the season finale, the team, although torn apart and uncertain as to their future, must come together to save Walter's life as his car hangs off the side of a cliff.
Walter learns Cabe's long-hidden secret regarding the Baghdad mission and it threatens to tear Team Scorpion apart. Meanwhile, Ralph puts his life in danger to help the team.
Team Scorpion's helicopter crashes while on a mission to save lost hikers. The crash ignites a massive wildfire that quickly closes in on them. Meanwhile, Sylvester tries to help the injured pilot who is unable to make it to safer ground.moreless
Team Scorpion is asked to assist secret peace talks when a conflict in Eastern Europe heightens and threatens a World War III scenario.
A tech billionaire hires Team Scorpion to rescue his kidnapped daughter. Meanwhile, some feelings get hurt when Walter gives an interview and fails to acknowledge the other members of the team.
Team Scorpion work undercover on a cruise ship to locate and disable stolen rockets. Meanwhile, Toby and Happy help Ralph deal with his first crush, as Valentine's Day approaches.
To prevent nuclear weapons from being launched from a secret U.S. nuclear silo, the team has to prod the memory of their only hope, an injured former Secret Service agent. Drew proposes that moving to Maine might be best for Ralph.moreless
The team must uncover the mole inside the CIA who's stealing deadly chemicals. Paige gives Walter a flirting lesson.
Team Scorpion try to save a boy on Christmas Eve when he gets trapped in a beach-side cave and the rising tide threatens to drown him.
Sylvester is seriously injured when he accidentally triggers an explosive device during an investigation; and Team Scorpion search for who is responsible.