Kickboxer: Retaliation (2018)

A year following the events depicted in "Kickboxer: Vengeance", Kurt Sloan adamantly swears off any return to Thailand. However, as he prepares for a shot at the MMA championship, he mysteriously finds himself drugged and unwillingly sent back to Thailand, this time imprisoned. The instigators behind his predicament demand that Kurt confront a monstrous figure named Mongkut, towering at 6'8" and weighing 400 lbs, in exchange for two million dollars and his liberty. Initial reluctance from Kurt prompts a bounty on his head, coercing him to confront Mongkut. With no alternative, Kurt embarks on his most intense training regime yet, guided by unexpected mentors, as he readies himself to confront Mongkut and strive for freedom once more.