The Micronauts, aboard the HMS Endeavor, pass through the Spacewall and Fringes and crash on Earth. Everything around them appears giant-sized, while in Earth dimensions, they are about the size of children’s action figures. There, they meet a boy named Steve Coffin, after surviving encounters with Steve’s dog Muffin and the lawn mower Steve was using to cut the grass in his back yard.
Acroyear’s evil brother Prince Shaitan shows up in a command cruiser leading a small contingent of wing scouts equipped with phaser flares. The Micronauts and Steve Coffin destroy the attackers’ vessels. The Micronauts leave aboard the Endeavor, leaving Steve Coffin’s a battlefield in flames.