In the future city of Neo Koba, a team of superpowered bounty hunters makes a living tracking and apprehending wanted criminals by their assigned serial numbers. A straightforward contract to capture scientist Doctor Saturn and his blob sidekick aboard an orbital spacecraft leads, through a series of escalating jobs, to something much larger. A member of the Delete Gang named Johnny is holding a floppy disk containing the Shiva System — a program capable of seizing control of every computerized system on Earth. The bounty hunters must fight their way through Neo Koba's criminal underworld, level by level, to recover the disk before the Delete Gang deploys it.