Chapman is an ex-marine in Brazil’s slums, battling the yakuza outfit who attacked his sister and left her for dead.

Russian inmate Boyka, now severely hobbled by the knee injury suffered at the end of Undisputed 2. No longer the feared prison fighter he was, he has declined so far…

In Bangkok, the young Kham was raised by his father in the jungle with elephants as members of their family. When his old elephant and the baby Kern are stolen…