锁定

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.

《锁定》的基础信息更偏电影，简介里的“Danny, a respected cop, is setup a...”提供了第一层判断，剩下可以再看主创和年代。