Winnie doesn't remember the last time she felt anything below her neck. Her spine is severed at the seventh vertebrae, but thanks to implants from a sabotaged biomedical start-up, she has regained mobility. She is a prototype: a living, breathing—walking—demonstration of revolutionary technology that never made it to market.

Her disability has become her armor. Because she doesn't register fatigue, she has trained relentlessly. Her hand, arm, and leg strength are off the scales for a woman, and she has honed self-defense techniques to channel that strength. She's a modern-day Amazon who feels no pain.

When the sociopath who torpedoed the start-up sends killers to harvest the implants from her body, Winnie must team up with broken-down private investigator August Riordan to save both their lives—and derail sinister plans for perverse military applications of the technology.