She was engineered to be perfect. Perfect for the system she's about to break.

Elite Sentinel Zara Thorne has dedicated her life to protecting Unity from Splinter contamination in a world ravaged by climate change. But when her body begins developing impossible abilities, she discovers the terrifying truth: she carries the very modifications she was trained to eliminate.

Forced to flee with her partner Trent Vanguard, the man she's secretly desired for years, Zara escapes into the wasteland. But safety comes with betrayal when Trent reveals he's known her true nature all along—their entire partnership was built on lies.

Seeking refuge among those she once hunted, Zara meets Vex—a fiercely modified Splinter who embodies everything Unity taught her to despise. Everything Trent isn't. Wild. Untamed. Dangerously alluring.

As her modifications accelerate and Unity closes in, Zara is caught between two men who represent opposing futures. One who protected her while deceiving her. One who challenges everything she's ever believed.

The wasteland isn't the only thing that's toxic. So are secrets. And Zara's might change humanity's future forever.