Set in the ancient land of Arthdal, Eun Seom, born with a fate to bring disaster, and his mother endure hardships before fleeing to a new land. Though Eun Seom grows up there, he is an outcast. Ta Gon, a war hero of Arthdal, aims to become its first king. Tan Ya, destined to be the great mother of the Wahan Tribe, struggles with her role, while Taealha, daughter of the Hae
