Episode 1

S1 E1: The `nutcase' of Manyang Substation, Assistant Inspector Lee Dong-sik (Shin Ha-Kyun), meets Han Ju-won (Yeo Jin-goo), an Inspector from the Foreign Affairs Division of Seoul Metropolitan Police Agency. The two, who cannot be any more different from each other, become unwilling partners and fight at every turn, until they come across an unexpected body.