In the year 2111, the solar system has been colonized. The colonized moons and planets are lawless and the police are helpless. In order to battle the evil within the solar system, Isaac Godonov creates J9, made up of himself, Jotaro Kido, Steven Bowie, and Angel Omachi. They are a team that will handle any missions the police will not with their robot Braiger... for a price.

(Source: Anime News Network, modified)