In the year 2150, one hundred years after the end of the world, gladiatrix Danyka Ren deals in humanity’s oldest inclinations: sex and violence. Danyka spends her days training in weaponry and battle strategies, and her nights fighting for supremacy in the Vault fight arena or seducing high rollers at Club Prey, both establishments owned by the eldest and most charming of the Serrano siblings, Rex Serrano an Bás.

Through Rex, Danyka seeks a coveted nomination to the inter-territorial death match tournament at the quadrennial Peace Summit. Winning would guarantee Danyka the coin to buy her freedom from the Vault and any life she and her estranged twin sister, Ailan, could wish for. But when Rex betrays Danyka and a mysterious new gladiatrix-in-training, Isel, arrives, Danyka and Isel escape instead, and take Ailan with them on a run for their lives.

The trio seeks asylum in the swamps with Rex’s self-exiled sibling, Callan. At first, Callan refuses to help the woman he knows as his brother’s favorite gladiatrix, but is soon won over by her unrivaled combat skills and the glimpses of her vulnerable underbelly that she hides from the rest of the world.

What Callan does not know is that his refugees harbor a secret that could endanger his paradise, topple his sister’s brutal regime over the Básian territory, and revolutionize the course of the human race.