On Scorpion Season 3 Episode 3, Mr. Elliot hires Team Scorpion to help fix his rocket before it launches in three days. Mr. Elliot's engineers modified Walter's rocket, but they found out that there is a flaw.

Walter is inside the rocket when lightning strikes it, causing it to launch. Immediately, there are three problems that Walter faces, and then somehow we get up to six problems. Thankfully, Sly is keeping track.

The team manages to restore communications (and visual), so they can talk Walter through what needs to be done. It's too bad Walter is dangerously low on oxygen, causing him to hallucinate that Paige is up there with him.

Then, Walter loses consciousness. The only way to get him oxygen is to eject him from the capsule, while Cabe jumps from a plane to catch him. It's a nearly impossible catch, and Cabe misses.

In order to have a chance at saving Walter's life, the team needs to aerate the ocean, making it softer for Walter to land on. How do you do this? By firing a torpedo, of course! Hey, it works. Walter's alive, and all is right with the world.

Well, except for when Paige had to talk to Walter while he was loopy, she learned that Walter loves her, and she told Walter that she loves him too. As of right now, Walter doesn't remember anything, but he will, eventually.