Ernie David

Convicted for a crime he did not commit, kickboxer Max Rivers is sentenced to life imprisonment in Carcel de Cordoba, the world's most impenetrable prison. He discovers a corrupt regime run by the chief warden, who organizes high-stake fighting contests. When Rivers' appeal is quashed by a crooked judge, he finds himself forced to rely once again on his fighting instincts as he enters the ring in the prison. (The Movie Database)

In 1973 Vietnam, gas bombs are dropped on villages, killing men, women, and children. Two downed American pilots, accused of the bombings, are captured and tortured. Both men give name, rank, and serial number but neither one confesses. Elsewhere, a team of seven diverse individuals is hired to rescue the two pilots. These individuals manage to free the pilots from the river-cages where they've been imprisoned, but the Vietnamese counterattack proves deadly... (imdb)