Jaded narc Lt. Do (Jeong-min Hwang) and drug dealer Sang-do (Seung-beom Ryu) forge an uneasy alliance in this gritty thriller set in Pusan, South Korea. When their joint sting goes awry, Do gets suspended and Sang-do ends up in jail, paving the way for crime boss Jang Cheol (Do-gyong Lee) -- the man who executed Do's partner -- to take over the city. Reteaming years later, can Do and Sang-do bring down the vicious Jang Cheol?