1930-е. The world is in chaos, the Korean peninsula has been invaded by Japanese imperialists. Many Koreans fleeing the invaders flock to Manchuria, a vast land of horses and steppes bordering their homeland and China, where some inevitably become bandits. Yoon Tae-gu, a thief, robs the train and finds himself in possession of a map of Qing Dynasty treasure hidden somewhere in Manchuria. Park Chang-yi, a cold-blooded assassin with a gang of thugs, is also trying to get his hands on the map, and it would be hard for Tae-gu to get away alive if bounty hunter Park To-won didn't suddenly change the balance of power.