Човек от бъдещето

Janitor Josh Futterman is leading an aimless life but excelling at his favourite video game, when the main characters from said game, Tiger and Wolf, appear and tell him the thing was a test, having been sent back in time to try and locate the one person capable of saving the world. Can the hardened future warriors shape the shiftless Josh into the hero the future needs? Or will the banality of his life drag them all into irrelevance and mediocrity?