Money and power beckon in the booming southern port city of Busan in the 1980s and 90s. Ik-hyun (Choi Min-sik), a charismatic and corrupt customs official, plays a dangerous game when he intercepts a drug shipment and cuts a deal with the city’s biggest crime boss, Hyeong-bae (Ha Jung-woo). The two heavyweight egos make a potent team, but a government crackdown threatens to bring down their entire operation. Can they work together to survive or will it be every many for himself in the cutthroat underworld?