Buckle up and prepare for a ride that's out of this world! When Earth is threatened with imminent destruction an out-of-shape, out-of-work and over-the-hill former superhero is called back into action to save the day. That hero is Jack Shepard a.k.a. "Captain Zoom" (Tim Allen). The problem is he's lost all his powers. And now, it's up to General Larraby (Rip Torn) and Dr. Grant (Chevy Chase) to coax him into taking on one more mission: train a ragtag bunch of kids with amazing superpowers of their own. With help from the brainy Marsha Holloway (Courtney Cox), they'll learn to work as a team and harness their powers to battle an evil menace who's determined to make one seriously huge mess of life as we know it.