https://www.imdb.com/title/tt0281322 When heavyweight champion George "Iceman" Chambers lands in prison, the resident gangster arranges a boxing match with the reigning prison champ.

https://www.imdb.com/title/tt0443676 Sequel to the 2002 film. This time, Heavyweight Champ George "Iceman" Chambers is sent to a Russian Jail on trumped-up drug charges.

https://www.imdb.com/title/tt1156466 Boyka is back. This time he is fighting in the first ever inter-prison tournament with one knee.

https://www.imdb.com/title/tt3344680 In the fourth installment of the fighting franchise, Boyka is shooting for the big leagues when an accidental death in the ring makes him question everything he stands for.

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