At Halloween, the team takes on a case to prove the existence of ghosts on the Queen Mary but find a ship on a deadly collision course Walter considers taking note of Paige's interests to benefit their relationship.
After extinguishing a catastrophic tunnel fire, Team Scorpion helps Toby and Happy get to their wedding ceremony.
The team attempts to extract a pair of scientists trapped inside a failing and dangerous bio-dome designed for Mars.
The team defies the orders of a foreign government when it retrieves an asteroid containing DNA strands that could have deadly consequences if they are exposed.
The team races to save Paige and Happy when a wire supporting the gondola they are in during a mission to repair a turbine at a wind farm snaps.
To stop a dangerous virus from spreading, Team Scorpion must locate an endangered monkey in the Amazon that has the antibody for the cure Toby and Happy see a counselor to prepare for matrimony.
Team Scorpion must move Happy's friend Ada, and the sterile bubble Ada lives in that protects her compromised immune system, to a secure location after a severe storm leaves the structure surrounded by dangerous debris.
Happy, Sylvester and Cabe suffer from life-threatening, fear-based hallucinations after a simple mission to protect a vital seed bank goes awry.
Walter and Sylvester enter an international chess competition under cover on foreign soil in an effort to extricate a U.S. spy before her identity is exposed.
Team Scorpion's job to find sunken treasure goes awry when Walter and Paige's boat explodes, leaving them lost in the middle of the Pacific Ocean surrounded by sharks.
On election day, someone tries to create turmoil in the U.S. presidential election, and Team Scorpion is called to investigate.
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.
A simple job at the Los Angeles Natural History Museum turns deadly when thieves steal things from a rare gem exhibit to get the materials they need to make a nuclear bomb.
A boy from Ralph's class goes missing after having a run-in with a deadly criminal Toby comes closer to discovering the identity of Happy's husband.
When Walter is accidentally launched into space in a rocket, Team Scorpion must find a way to bring him home before his oxygen runs out.
The team members set aside their personal and romantic issues when hackers take over targeted U.S. military aircraft and war ships, pointing the weaponry at American cities.
The team members set aside their personal and romantic issues when hackers take over targeted U.S. military aircraft and war ships, pointing the weaponry at American cities.
The team must outsmart mentally unstable ex-Scorpion member Mark Collins when he kidnaps Toby and threatens to kill him if his demands are not met.
In Chernobyl, Sylvester and Paige become trapped inside a decaying nuclear reactor that the team is trying to repair before a tragic meltdown.
When a powerful earthquake hits Los Angeles, Team Scorpion must prevent a pinched gas line from causing a massive explosion.