漢江刑警

While on patrol, Han Dujin spots Go Giseok acting suspiciously and gives chase.

The team is suspicious when it discovers Baek Chul's barge tethered to a stranded ferry.

The team discovers Go Giseok and Baek Chul by the river ferry and is immediately suspicious; a falling oxygen tank hits Dujin's head and leaves him unconscious in the river.

Han Dujin and Lee Jungchan investigate several mysterious incidents in the Han River, including that of a murdered captain, and hope that Palmi Island will hold some answers; Hwang Mandae plans to use the river cruise business to smuggle gold.

Go Giseok kidnaps Han Dujin and Baek Chul's nephew, Han Jun; a furious Dujin becomes convinced that Giseok smuggled gold and that Baek Chul is involved; Lee Jungchan learns about the trade between Hwang Mandae and Madam Choi.

Han Dujin uses a GPS tracker to pursue Baek Chul, who has arranged to meet Go Giseok and exchange the remaining gold bars for Han Jun's return; Dujin interrupts the meeting and fights off Giseok's henchmen so Baek Chul can safely escape with Jun.