During the Qing Dynasty, In-hong is forced into the army, where he meets Bo-won and Gyeon. After surviving the battlefield, they return to Korea and form a con ring, pulling off elaborate scams to survive. However, they become wanted by the authorities and must continue their schemes in secret.
Seondal: The Man Who Sells the River
The movie is based on the legendary conman Kim Seon-dal, who gained fame in Korean folklore for his clever scheme to sell the water of the Daedong River.