The final instalment of the Ong Bak franchise, "Ong Bak 3: The Final Battle" continues from where "Ong Bak 2" left off. Tien (Tony Jaa) was captured and tortured by the Mystic Crow Demon (Dan Chupong) and sentenced to death by being buried underground. However Tien was rescued by Pim, an Apasara dancer and nursed him back to health. His ex-master Phra Bua, now a monk at the village, teaches Tien the traditional dance 'Klon'. Tien regains his physical and mental strength and awakened the new martial arts "Hattayuth" or "Dancing fight". However, Tien still seeks revenge against the Crow Demon and must battle him physically while he struggles with the darker demons inside of him.
*source from here*
I've watched Ong Bak I and II, and personally feel it's a nice movie, thats what trigger me to watch this too. But I'm disappointed with the movie :S Part III is much boring compared to the previous 2. Not much storyline, except for more fighting and reveal how the King dies due to the curse. The most exciting part comes towards the end of the movie where Tien battles against Demon and bring back harmony to the village.