Plot summary
After Sly gains the attention of a crime boss, he must help him win back millions from a Chinese rival in exchange for the address of the hackers. The others successfully regain control over the destroyers, only to find out there is also a nuclear submarine under the hackers' control. They try to use magnets to disrupt the hackers' signal, but are mere seconds too late in implementing their solution. Cabe and Tim run into a trap, eventually managing to find the hackers' lair, but not before the hackers launch a nuclear missile.
In a team effort, Walter reprograms the rocket's GPS to disable it. Meanwhile, Sly accidentally loses the game. After the crime boss finds out Sly works for the U.S. government, he decides to kill him. On the way to a secluded area, Sly escapes and is ultimately rescued by the Valkyrie pilot. Later, on Cabe's advice, Walter must face the reality that he is not emotionally ready for Paige, deciding to make amends with her and Tim.
Credits
Adapted from Wikipedia contributors, List of Scorpion episodes. HTML formatting and reference markers removed.