Isaac Florentine

A westerner named Casey, studying Ninjutsu in Japan, is asked by the Sensei to return to New York to protect the legendary Yoroi Bitsu, an armored chest that contains the weapons of the last Koga Ninja.

After a mission goes wrong, only one of a group of mercenaries is left alive to take revenge for his brothers.

A former special forces agent's son is kidnapped and must now wipe out three dangerous crime syndicates, if he wants to see his son alive again.

A rogue soldier turned outlaw is thrust into a fight with a dirty sheriff and the cartel he works for to protect his niece and sister.

En pratglad advokat förvandlar hans kropp och tar ett löfte om tystnad, för att inte brytas förrän han finner ut som dödade hans fru och dotter och har sin hämnd.

Ninjitsu master Casey is back and out for revenge when his pregnant wife is murdered.

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 that he is now good only for cleaning toilets. But when a new prison fight tournament begins - an international affair, matching the best fighters from prisons around the globe, enticing them with the promise of freedom for the winner - Boyka must reclaim his dignity and fight for his position in the tournament