More Extinction

More Extinction is the second episode of the fourth season of Scorpion, and the seventy-third of the series overall.

Synopsis
The team continue to work with their nemesis to prevent an extinction level event. Cabe makes a last minute decision that may endanger his career.

Plot
Team Scorpion is still working on their methane gas issue in the arctic that could cause a mass extinction. Walter calls in to the government, who tells him that they don’t have the money or the resources to help. He hangs up. They have their own plan. A Russian helicopter flies overhead. Walter has an idea. The team all gets on board. They plan to steal the helicopter, It is the tool they need to stop the leak. Happy has her pilot license. She’ll fly. The rest of the gang has to pilfer all of the chemicals they need. They get to work. Happy and Collins arrive at a Russian hotel where they pose as husband and wife. Collins tasers the man at the front desk, Happy tapes his mouth, ties him up and drags him into the back room. The others appear from around the corner. They check the computer for the pilots schedule and figure out where to go into the hotel to get the supplies they need.

Walter and Paige work extracting silver nitrate from the ceiling mirrors in the workout room while a dozen women work out unknowingly below. They scrape while talking about music. Meanwhile, Cabe and Collins pose as spa workers to the man who is next to use the helicopter to leave. They put wax all over his seaweed wrap causing it to harden into a shell so he cannot leave. They force him to call and say he is going to be an hour late.

Happy, Sly and Toby need a chemical from the pool water. They have to drain the pool to get it. Toby decides he is going to go swimming in the hotel pool in a pair of Speedos and pretend to pee to clear everyone out. In the pool, a dark blue cloud forms around him. He tells everyone he had an accident. They all swim away disgusted. Sly tells him he forgot the blue dye pack and asked how he made the pool blue, Toby says he improvised.

Happy takes off to hijack the chopper. She creeps out to the roof. The pilot gets out. She runs around the corner and jumps in. Everything is in a set up different than a regular helicopter because it's an experimental aircraft. She pushes a button, accidentally shooting off a missile that flies off to Norway.

Paige and Walter have caught the attention of the guards who are now chasing them. The gang has to scramble. Talking by headsets, they all get their things and run for it. Collins hurts his ankle trying to lift in a hurry. Cabe has to push him on a cart. Happy finally gets the helicopter going. Sly gets in. The others are trying to make their way there. Toby jumps in. Men start shooting at them. They fly off, leaving Walter, Paige, Cabe and Collins behind. Paige and Walter come face to face with a man with a gun. Paige kicks him where it counts and they run for it.

Happy hits an air pocket, sending Sly flying. Cabe and Collins make it to a car. Walter and Paige are right behind them after they steal a car. They take off fast as men shoot at them. Cabe and Collins make it to their spot. They need to run to the launch spot. Collins drops to the ground. His ankle is in too much pain. Cabe is forced to leave him 20 or so feet behind, too far away for his comfort zone. Sly drops the 1st rocket. Cabe is ready to fire his missile when Collins stands up. He is on the move. He faked his ankle injury. Walter tells Cabe to keep going. They will get him after. After firing their missiles, it begins to snow heavily, putting a stop to the methane leak. Unfortunately the snow causes a total whiteout meaning Collins gets away.

They do a debriefing to the new homeland director. As soon as they are done and disconnected, Cabe says he made a mistake and he knows the director is going to have more to say to him. Everyone begins to disperse for the night. Cabe is headed to Allie's when he is stopped by Homeland and arrested for helping Collins escape.

Main

 * Elyes Gabel as Walter O'Brien
 * Katharine McPhee as Paige Dineen
 * Robert Patrick as Cabe Gallo
 * Eddie Kaye Thomas as Toby Curtis
 * Jadyn Wong as Happy Quinn
 * Ari Stidham as Sylvester Dodd

Recurring

 * Riley B. Smith as Ralph Dineen
 * Joshua Leonard as Mark Collins