After witnessing a mob hit-gone-wrong, Frank Lambda, an inept superhero wannabe, goes on the run. Enter mystery woman Keira who claims to run a secret training program, turning cosplayers like Frank into real-life heroes. He smells a con but with nowhere to turn, he joins a mismatched troupe of bumblers and travels to the promised land: Las Vegas, Sin City USA. Against the backdrop of a thousand spandex-clad cosplayers, Keira's true agenda-to steal millions from her mobster brother-is exposed. With their lives, and a fortune, at stake, Frank and his band of misfits learn how to right wrongs and show the world and themselves the real meaning of heroism.