When three co-workers (Molly, Max and Brian) find themselves trapped in their office basement by shambling zombies, the unlikely trio attempts to devise a plan of escape. With limited resources and no sign of the attack waning, Brian and Molly try to put brains and brawn together to find a way out. However, it's Max's store of useless movie trivia that truly holds the key to their escape, with a harebrained scheme that just may be crazy enough to work.