A 1.ª temporada de Royal Blood estreou a 6 janeiro 2015.

Three childhood friends, in the Ayutthaya army, are constantly at odds. Thap wants to fight bravely, as Sang and Khap follow orders and retreat. Unhappy with the army, Thap defects and joins a group of patriotic rebels who eventually all gather at the village of Bang Rajan to defend against the Angwa.