Danny, a respected cop, is setup after an investigation goes wrong. While laying low in his new jail cell, Danny is forced to get involved in the inmates underground cage fighting circuit. With the help of Irving, a former mixed martial arts champion, Danny devises a scheme to bring justice and innocence to his family's name, if he can get out of the cage alive. 　　译文(2): 丹尼，一个受人尊敬的警察，在调查出错后被陷害。在他的新牢房里，丹尼被迫参加囚犯的地下笼斗赛。在前综合格斗冠军欧文的帮助下，丹尼设计了一个计划，如果他能活着走出笼子，就能为他的家族带来正义和无辜。