Detective O Nam Hyeok, a spectacularly inept cop clinging to his badge by a thread. When a botched sting operation lands him in hot water, he's forced to partner with Cho Tae Bong, a razor-sharp informant whose cover and savings are blown by Nam Hyeok's bumbling. With a smuggling ring to bust and zero trust between them, this mismatched duo must navigate double-crosses, bruised egos, and their own chaotic partnership while taking down a criminal organization.