Team Scorpion try to protect Cabe's ex-wife, after she uncovers evidence that suggests foul play in the death of a prominent congressman.

When Sylvester accidentally triggers an explosive device during an investigation, Team Scorpion must focus on finding who's responsible even while their friend's life hangs in the balance.

Team Scorpion is tasked with uncovering a mole inside the CIA who is being coerced into stealing deadly chemicals. Paige gives Walter a flirting lesson in preparation for the case.

When Team Scorpion and Walter's parents visit Megan in the hospital as her health deteriorates, they are quarantined after a deadly fungus outbreak threatens to infect everyone.

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.

When poachers almost kill a pregnant endangered deer, Team Scorpion recreates the animal’s womb to try to save it and its baby’s life. Also, Happy and Toby discuss the future of their family.

While attending a tech convention, Team Scorpion is taken hostage by a group attempting a virtual heist.