The life of a shy, seventh-grader Spencer Griffith, who has a crush on a schoolmate named Michelle Eberhardt, changes one night when he sees a mysterious meteorite, as it crashes down into a nearby junkyard.
He proceeds to go around town doing whatever he wants, starting with getting back at bully Manfred "Turbo" Bruntley, then saving Michelle and her friends from a damaged Rock-O-Plane and ordering food from a fast-food restaurant drive-thru.
He also endures the hilarious antics of trashing part of his house after getting his head stuck inside the refrigerator, discovering the unappealing way that it will allow him to eat his take-out food, and finding a way to pee when it won't let him out to do so.
Just when the Broodwarrior is about to dispose of Spencer, Turbo finds a control panel and activates the car crusher the truck is sitting in, revealing the chase into it to be part of a trap.
Just as Spencer begins to lose hope, Tenris De'Thar and a small group of Trelkin soldiers appear from a giant UFO orbiting Earth and quickly repair Cy, reviving it.
After Spencer says goodbye to Cy, the head alien soldier gives him a badge for his bravery and courage before their departure back to their home-world, and the long, eventful night finally comes to an end.
At the 1995 American Film Market, it was positioned as Trimark's flagship product when it was previewed to foreign distributors under its original title, The Warrior of Waverly Street.