Awakened in a stark concrete cell, Sabrina, played by Zoe Bell, finds herself trapped in a nightmarish underground facility alongside dozens of other women. Forced to fight to the death in brutal, hand-to-hand combat by a mysterious and sadistic cult, these captives are given a horrifying ultimatum: kill their opponent, or the cult will murder the person each woman loves most in the world. As Sabrina forges a fragile alliance with fellow prisoner Jamie, portrayed by Rachel Nichols, she must navigate a gauntlet of savage opponents, including the formidable Teresa (Rebecca Marshall), all while searching for a way to defy their captors. Directed by Josh C. Waller, this relentless and visceral thriller plunges viewers into a claustrophobic world of primal survival, exploring the extremes of human endurance and the fierce will to protect those we love, even in the face of unimaginable cruelty.