A giant computer has ruthlessly subjugated humanity, and the fight against it is impossible without the five great Rings - powerful microcircuits that can destroy the new ruler of the world. In search of the Rings, a group of desperate rebels is sent - the star pirates of "Thunder." But again to return to people the right to dispose of their own destiny is not an easy task, because the Rings are scattered along the streets of the Universe, and each of them is under vigilant protection. One wrong move could be deadly for storm warriors...