Plot summary
Happy continues to date Chet, upsetting Toby, who takes out his frustration on a punching bag. The team meets deputy director Katherine Cooper, who is now Scorpion's Homeland liaison. She tasks three members of the team, Walter, Cabe and Happy, with analyzing a "vulture" data hunter device that is attached to a communications cable 300 ft (91 m) down in international waters off the coast of California. After analyzing the vulture from a top secret U.S. Navy submarine, the vulture explodes, crippling the submarine. With limited air and no communications, Scorpion must rescue everyone on board the submarine before it self-destructs. Later, Walter proves he is not a "robot" and lets Ray stay in a trailer at the garage.
Credits
Adapted from Wikipedia contributors, List of Scorpion episodes. HTML formatting and reference markers removed.