In 1431, Tien, extremely skilled in Muay Thai, is held captive and both his elbows and knees are snapped on Lord Rajasena's orders. When Rajasena orders his men to kill him, a man arrives to save him.
A professor is shocked to learn about her ordinary husband's secret life as a top-notch spy. With the discovery of this secret, the agency hires her to aid her husband in a formidable mission.
Tien, an orphan boy, is rescued and trained in martial arts by Chernang, a warrior and the leader of a group of bandits. He becomes a lethal soldier in order to avenge the murder of his parents.
When an ancient Buddha statue's head, sacred to a village, is stolen, Ting, a Muay Thai artist, volunteers to bring it back. For this, he must defeat crime lord Komtuan's men, in order to retrieve it.
To sell her farm products, Kang Dani works as a merchandiser for a home shopping company. Meanwhile, her niece, who is not interested in their products, takes up the job of a host at the same office.