Aka：Chasing the Undercurrent / 罰罪 / 벌죄 / Theo Dòng Nước Ngầm / Подводные течения / พลิกล่าสืบคดีลับ
Summary：The show sets in a city called Changwu, a place ruled by local crime syndicate the Zhaos. The police must try their best to bring them down and bring justice to Changwu.
