An epic historical action film about King Naresuan the Great, who liberated the Siamese from the control of Burma, changing the destiny of a nation. Part I depicts Naresuan's boyhood, when he was taken hostage by Burmese King Bayinnaung to keep the vassal Ayutthaya Kingdom subservient. During this time, he was a novice Buddhist monk under the tutelage of the wise father-figure monk Sorapong Chatree. Part II portrays Naresuan as a young adult prince, already a formidable military strategist, as he leads his army on exploits against breakaway kingdoms for King Bayinnaung's successor, King Nonthabureng, and eventually breaks away to declare sovereignty for Siam.