Jeremy Angel

One year after the events of "Kickboxer: Vengeance", Kurt Sloan has vowed never to return to Thailand. However, while gearing up for a MMA title shot, he finds himself sedated and forced back into Thailand, this time in prison. He is there because the ones responsible want him to face a 6'8" 400 lbs. beast named Mongkut and in return for the fight, Kurt will get two million dollars and his freedom back. Kurt at first refuses, in which a bounty is placed on his head as a way to force him to face Mongkut. Kurt soon learns he will have no other choice and will undergo his most rigorous training yet under some unexpected mentors in order to face Mongkut in hopes to regain his freedom.

CIAの“トレッドストーン計画”のもとで失った記憶をすべて取り戻した、元CIAのボーンが消息を絶ってから長い年月がたつ。彼の元同僚ニッキーはハッカー集団と手を組み、CIAから極秘情報を盗み出していた。CIA長官デューイはニッキーの足取りを追い、ニッキーがボーンと再会しようとしているギリシャに凄腕暗殺者アセットを送り込む。一方、ニッキーはボーンにCIAで進行中の“アイアンハンド計画”について明かす。