Undisputed III: Redemption

Undisputed III Redemption is the third installment to the 2002 action film Undisputed. The film stars Scott Adkins, Mykel Shannon Jenkins, Mark Ivanir and Hristo Shopov, and was directed by Isaac Florentine. It takes place several years after the events of Undisputed II Last Man Standing.

Boyka is transferred to Gorgon prison in the republic of Georgia where he is joined by a diverse group of eight international prison fighters. Though the fighters are allowed one hour each day for training, they are still grouped into the general population for hard labor while Colombian fighter and local inmate Raul Dolor Quiones is given private sparring sessions and a regimen of performance enhancing drugs. During his stay, Boyka gets into odds with an American boxer Jericho Turbo Jones who is shown to be disrespectful, insubordinate, and a loudmouth. He also reminds Boyka of Chambers. Boyka, Turbo, Dolor, and Brazilian fighter Andriago Silva advance to the second round of the tournament while the losing fighters are sent home, only to be shot dead by waiting guards.The next day, Turbo instigates a fight with Boyka before both men are thrown into solitary confinement. They are eventually released due to some manipulations by their managers Gaga and Mafia Don Farnatti, who are old friends and rivals. Upon hearing of the prisons treatment of their fighters, the two mob bosses confront Warden Kuss, but PSC mastermind Rezo explains to them that the tournament has always been fixed to ensure the highest profit at the lowest risk. He advises them to liquefy their assets and place their bets on Dolor to ensure their profit. Realizing that the loyalty to their fighters only extend to their payout, Gaga and Farnatti agree to this arrangement. Meanwhile, Boyka and Turbo slowly develop a trust in each other and focus their attention at beating Dolor in the tournament. They both start using the hard labor as part of their training. With Turbos attitude eroding, he starts showing signs that his ego evolved from a highly disciplined past as a U.S. Marine. In addition to reciting, Improvise, Adapt, Overcome as part of his training, he recommends some holistic medicine for Boyka to soothe his knee. ........

Source: Wikipedia