The team must fix a pinched gas line in order to prevent a massive explosion after a powerful earthquake hits Los Angeles.
Team Scorpion try to uncover a mole in the CIA who is being coerced into stealing deadly chemicals. Meanwhile, Paige helps prepare Walter for the case by giving him a lesson in flirting.
An ex-United Nations employee races against time to save humanity from a pandemic that has triggered a global war between mankind and the undead.
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