A life and death battle in the Chinese and Thai boxing arena

Liu Enyuan is a respected trainer in China and has many apprentices. His apprentice Zheng was forced to participate in a Muay Thai competition in Bangkok to save his sister. Liu sympathized with Zheng and accompanied Zheng with his son Kang. Unexpectedly, Kang and Zheng lost the competition. Because the competition was seen as a contest between Chinese and Thai kung fu prowess, domestic martial arts masters were very angry and accused Liu. As a result, Liu's daughter Xiaofeng was divorced, and Liu's apprentices also left one after another. Unable to bear the blow, Liu committed suicide. In order to clear up their father’s reputation, Xiaofeng and Kang decide to go to Bangkok to learn Muay Thai, hoping that they can win the Muay Thai master...