Steven Bowie, alias Speedy Bowie, operates as a core pilot in the mercenary Team Cosmoranger J9 during the early 22nd century's era of colonized solar systems. He commands the transforming robot Braiger on high-risk missions beyond conventional law enforcement's reach, directly engaging criminal organizations that threaten Earth and its planetary colonies through combat and tactical operations. Identifiable by his freckles and habitual hat, he works alongside Isaac Godonov, Jotaro Kidou (Blaster Kid), and Machiko Valencia (Angel Omachi). The team accepts paid assignments to confront large-scale criminal enterprises and conspiracies where standard police forces lack jurisdiction or capability.