After losing his wife and child to an explosion, Kurt Sloane seeks vengeance by training in Malaysia's underground fighting scene to track down and assassinate Cesare, the twin brother of Master Durand, who was behind the attack.

When his brother is killed in the ring, a martial artist seeks revenge and trains with a martial arts master in Thailand.

In 'Kickboxer: Retaliation,' a skilled martial artist seeks revenge against a powerful crime lord who has kidnapped his wife. He must undergo grueling training and face brutal challenges to prepare for the ultimate fight.