After completing a covert mission in southern Thailand, CIA agent Gunja finds herself forced to fight off operatives who’ve been ordered to take her out at all costs. She survives and after two years of laying low, re-emerges in Bangkok to face her old foes and foil a plot to detonate a bomb in the city.

Ong Bak 3 picks up where Ong Bak 2 had left off. Tien is captured and almost beaten to death before he is saved and brought back to the Kana Khone villagers. There he is taught meditation and how to deal with his Karma, but very soon his arch rival returns challenging Tien for a final duel.

Moments from death a young man is rescued by a renowned warrior. Realizing unsurpassed physical potential in the young boy he trains him into the most dangerous man alive. As he becomes a young man he goes on a lone mission of vengeance against the vicious slave traders who enslaved him as a youth and the treacherous warlord who killed his father.