In 1930s Manchuria, an encounter on a train triggers an epic crusade for a treasure map, prompting a marathon chase in hot pursuit of the loot. Do-won, "The Good", is a bounty hunter, out to track down Chang-yee, "The Bad", a charismatic hitman attempting to steal the map from a military official. However, the ruthless Tae-goo puts a hitch in both their plans when he secures the map for himself.