David's brother, Kurt, defeats Po in Karate Tiger 3 - Der Kickboxer (1989). A year after Po kills Kurt, David, who has a kickboxing gym in LA, is manipulated into a match against Po.

David Sloan travels to Rio for a kick-box exhibition. There he saves two youngsters and stops a white slaver.

Ex-kickboxing champion turned sports photographer Max Havoc again finds himself in Guam on a publicity photo shoot. Max's helpful ways land him in the lives of the vacationing sisters Jane and Christy Goody who have acquired a rare jade dragon, which belongs to the ruthless Japanese Yakuza who will stop at nothing to get it back. It's up to Max to stop the Yakuza, save the sisters and restore order to the peaceful island.