After being framed for murder, a former heavyweight champion named Boyka must fight his way through an international prison boxing tournament to regain his freedom and seek redemption.

When a champion boxer gets framed for murder, he must fight his way through prison to prove his innocence and regain his freedom.

After being wrongfully accused of murder, Boyka, a former inmate, seeks redemption by entering an underground combat sport tournament. Along the way, he faces personal and professional challenges, fighting against dangerous opponents and his own inner demons.

In Undisputed II: Last Man Standing, a former boxing champion named George 'Iceman' Chambers is accused of drug possession and sent to a Russian prison. Inside the prison, he is forced to participate in underground fighting matches and must use his skills to survive.