Year 2111. Humanity has begun to colonize the planets of the solar system. Izaak Kodomofu, attracting skilled and young professionals, creates a vigilance team called Rangers of the cosmos Jota 9, which for remuneration carry out dangerous and risky missions against the evil ones who threaten peace in the solar system. The team includes Yotaro Kid, a fearsome gunfighter, Steven Boy, a skilled pilot, and the beautiful Omachi, a former secret agent. The four were immediately able to prove themselves: a load of chloriphyll, destined for the colony of Jupiter, was intercepted and hijacked by evil speculators. Thanks to a powerful robot, Bryger, the rangers manage to recover the load by defeating enemies without mercy. The baptism of fire was successful. Rangers can begin their battle against injustice, powered by a powerful battle vehicle: the Bryger.