Arthdal Chronicles depicts the birth of civilization and nations in ancient times. It is a story of mythical heroes, their struggle, unity and love of people living in a virtual land called Arth. The storyline of Arthdal Chronicles is centered around the ancient city of Arthdal, established on Arth. Eunseom relentlessly fights to protect his own tribe and has strong protective instincts. Tagon is very charismatic and most talented, yet overwhelmingly dangerous. Tanya is the successor of Wahan Tribe clan mother, who realizes her destiny to protect her own people against other powerful tribes. Taealha is the most beautiful lady in Arthdal, and has the strongest desire for power.

The second season of 'Arthdal Chronicles', a drama that unfolds depicting the fateful tales of Tagon, Eunseom, Tanya, and Taealha, who inscribe diverse legends in the ancient land of Arth. In this new season, the story is set in a world that takes place approximately 8 years after Tagon ascends to the throne.