Bizarro builds a giant ray that enlarges him, Sinestro, Toyman, and Captain Cold to 100 feet, allowing each to seize a continent. After being exiled to Saturn, the Super Friends escape and learn Bizarro overlooked a key detail. The Justice League computer reveals elements left behind that let Superman, Green Lantern, the Flash, and Batman use the same ray. Now giants themselves, the heroes battle their towering foes to save the world.