In a mythical land called Arth, the inhabitants of the ancient city of Arthdal and its surrounding regions vie for power as they build a new society.

Drama series depicts the life of Hong Gil-Dong who is the the first revolutionist and dissident activist in Joseon.

Choi Kang-Woo is a former detective, but he now works as a veteran insurance investigator. He leads a team that attempts to reveal insurance fraud cases.

Life turns on a dime for a thriving prosecutor after meeting his new perky intern, who becomes a prime murder suspect soon after joining his office.

Ji-sook facing a hard time because of her father's debts and begin chased by moneylenders. When a series of things happen Ji-sook have to live with Eun Ha's identity (a Woman from elite family) because she look exactly like a Eun Ha.