Natee infiltrates a criminal organisation to find out the truth about his parents' deaths. His secret investigation, and identity, get compromised when an escort mission goes horribly wrong.

一个旅行团正深入泰国一个森林游玩，期间遭到一伙持重型武器的狂徒袭击，原来一个自称“无敌杀手”的歹徒霸占了这座森林，但凡闯入者格杀勿论，只有武艺超强的功夫小子能够摧毁这个罪恶之地。

A group of martial arts students are enjoying a reunion party when a bomb goes off in the building. When they wake up, some of their friends have been kidnapped and they soon find a group of assassins coming after them. The only way to survive is to fight their way out.

Tien, the son of Lord Sihadecho — a murdered nobleman — is taken under the wing of Chernang, a renowned warrior and leader of the Pha Beek Krut.