It stars Michael Jai White, Julian Sands, Eamonn Walker, Dante Basco, Nona Gaye, Michelle Belegrin, and Bob Sapp.

The film also features martial artist Matt Mullins, former professional wrestler Ernest "The Cat" Miller, Kimbo Slice, Maurice Smith, and Gina Carano.

[2] Fresh out of prison, highly skilled martial artist and ex-marine Isaiah Bone moves to Los Angeles, where underground fights are being held.

Pinball explains to Bone that Angela was previously married, but James set up her husband Danny on a triple-homicide, sending him to jail.

Over the next few nights, Bone makes a name for himself in the underground fighting scene, defeating every fighter in his path and earning himself and Pinball thousands in cash.

The international underground fighting scene is run by a league of rich, powerful men known as the "Consortium", but mainly by a black market arms dealer named Franklin McVeigh, and James wants Bone to square off against Pretty Boy Price, the reigning champion.

There, Bone is ordered by James to fight Price and win back his money, or else he will have Angela, Tamara, Jared, and Pinball killed.