Years ago, Dirk Longstreet walked away from The Circuit, the merciless underground fight club with no rules, where money changes hands as men are killed. But now gangsters have got his brother, and only one more journey inside the ring will save his life.

Following his wife's untimely death, Dirk Longstreet adopts a nomadic lifestyle. He preoccupies himself with surfing, and makes ends meet by participating in brutal underground brawls. Longstreet's leisurely lifestyle is abruptly interrupted when a young girl sold into slavery seeks the fighter's assistance. The child's former captors want her back, and Dirk is prepared to annihilate whoever gets in his way.

Prisoners are dying at the Ogden Correctional Institution, a prison where a corrupt Warden has taken justice and business into his own hands. In the bowels of this prison, an underground fighting society has been formed. The Circuit is flourishing until investigative reporter Nicole Kent is thrown into the mix, and into Pike's cell where she is viciously attacked and left for dead. Enter Dirk Longstreet. Dirk, who was once a fighting champion on the Eastern seaboard circuit, now has to sit idly by as his girlfriend fights for her life. Dirk decides to fight for revenge