Ong Bak 2: The Beginning is a 2008 Thai martial arts film co-directed by Panna Rittikrai and Tony Jaa. Starring Jaa, it is a standalone prequel to the 2003 film Ong-Bak: Muay Thai Warrior. Set in 15th century Thailand, the film revolves around Tien, the son of a murdered nobleman. Captured and sold into slavery, Tien is saved from death by Chernang, the leader of the Pha Beek Khrut, a group of martial artists specialising in various Asian combat styles. Chernang takes Tien under his wing and realizes unsurpassed physical potential in the boy by training him in all the different types of Asian martial arts. When Tien grows up, he goes on a lone mission of vengeance against the slave traders and the treacherous warlord who killed his family.