G.I. JOE IS BACK! Thanks to the events of REVOLUTION, the G.I. Joe team led by Scarlett returns to the fray, leading the charge against invading TRANSFORMERS and other aliens. But when a US military defense base goes dark, Scarlett has reason to suspect that these enemy forces may have infiltrated G.I. Joe. It's up to her, Roadblock, Rock ‘n Roll, Quick Kick, Wild Bill, and Shipwreck to move in and root out any traitors before the facility falls into the wrong hands!