Think The Last Samurai but instead of Tom Cruise immigrating to the land of the raising sun and learning the ways of Bushido, its a samurai that gets adopted into a foreign tribe in Thailand and become accustom to their warrior culture. The cast of Yamada: The Samurai Of Ayothaya include Seigi Ozeki in the role of actual historical figure Yamada Nagamasa and K-1 fighter Buakaw Por. Pramuk as a bare-handed fight expert. Action-wise, its a mashup between Japanese swordplay and the brutality of ancient Muay Thai.

Yamada Nagamasa, the young Samurai of Edo period, came to be a soldier in the Japanese volunteer regiment in Ayothaya. He fought against a group of Japanese who disguised themselves as the Hongsawadee soldiers and beset Ayothaya with troubles led by "Kuroda Toranaga". Yamada was critically injured and helped by a group of Thai warriors. They, later, vowed to be "bosom friends