Switch asks the question, what if you could quite literally drive the body of another human being? Welcome to the world of Switch – an adrenaline-fueled procedural detailing the exploits of the FBI's newest undercover unit, the Switch Division, a task force created to allow an agent to go undercover inside the body of another human being. Or at least that's the theory. Unfortunately, type-A Louise "Lou" Fawkes can't find an agent insane enough to try her new technology. Enter Harry "Mac" Macallister – a sloppy, loose-cannon, former undercover burnout who will enjoy nothing more than the opportunity to spend each week inside the bodies of various criminals – except perhaps watching Lou pull her hair out trying to control him.