The Lazarus Project (season 2)

George is convinced he's lost his mind, but then he meets a mysterious woman named Archie who recruits him into a secret organization called The Lazarus Project, led by the formidable Wes. The organization has the ability to turn back time whenever the world is threatened with extinction, and is desperate to stop a criminal bent on destroying the planet. But when something terrible happens to Sarah, and George learns that he can only turn back time when the world is threatened with global extinction, he has to go against his conscience and decide what he is willing to sacrifice to change his own fate.