2.2 Flash of Two Worlds (The Flash 2014)

Plot Summary
Jay Garrick explains he's from another world and that he had to follow them due to being in a foreign world. He cannot prove it because he lost his speed for some reason. Barry who is suspicious hesitantly trusts Jay but in exchange, Jay needs to have tests run on him. While Caitlin helps Jay, Steins explains the multi-verse theory.

Caitlin states that Jay passes the lie detector test that she secretly gave Jay.