The year: 2990 AD. The centuries old conflict between the hi-tech underground world of the Trackers and the primitive, surface-dwelling Mutes continues with unabated ferocity. Steve Brickman, a Tracker wingman whose heart and mind is torn between the two cultures, embarks upon his most dangerous mission yet: therescue of Cadillac and Clearwater, two gifted Plainfolk Mutes held captive by the mysterious Iron Masters. It is a nightmare journey into the unknown but, once again, a shadowy presence guides Steve's footsteps and endows him with superhuman speed and strength in moments of mortal danger...