Hollywood stuntman Colt Seavers picks up some extra pocket money by using his rough-and-tumble skills to track and capture bail jumpers.
After the fall of the Galactic Empire, lawlessness has spread throughout the galaxy. A lone gunfighter makes his way through the outer reaches, earning his keep as a bounty hunter.
In 2071, roughly fifty years after an accident with a hyperspace gateway made the Earth almost uninhabitable, humanity has colonized most of the rocky planets and moons of the Solar System. Amid a rising crime rate, the Inter Solar System Police (ISSP) set up a legalized contract system, in which registered bounty hunters (also referred to as "Cowboys") chase criminals and bring them in alive in return for a reward.
Outlaw Star follows the outlaw Gene Starwind and his eleven year-old business associate, Jim Hawking. Together they run a small jack-of-all-trades business on the backwater planet Sentinel III. After the two take a job as bodyguards for a mysterious outlaw, they find themselves the owners of the XGP15A-II, a highly advanced prototype spacecraft, and the caretakers of a bio-android named Melfina, The series follows the exploits of the slowly growing ragtag crew.