Plot summary
Three weeks after crashing on a deserted island, the team is divided on plans to get rescued before the monsoon season, so the team splits up. Walter thinks a magnetic field change can get them home, while Toby tries to make a raft out of newly discovered oil drums. Meanwhile, a long-bearded Sylvester is losing his mind in the bunker with his pet chameleon. Everyone works together to rescue Ralph and Scotty when they are smothered in a sand pit created by an exploding copper wire experiment that results in an electrical disturbance, signalling a plane to fly above them. They spell out SOS on the sand and are saved. Back home safe, Paige and Walter are finally left alone and they consummate their relationship.
Credits
Adapted from Wikipedia contributors, List of Scorpion episodes. HTML formatting and reference markers removed.