Chairman Cheon makes a big error and Jungsook jumps to control the company. At the salvage site, an accident occurs and it is Heedong's turn to dive.

The team hires more divers, making their first real haul. Gwanseok takes a secret job; Jungsook auctions shipwreck treasure at a U.S. military base.

The location is still unknown when a rival shows, adding to the race. Chairman Cheon wavers, forcing Gwan-seok to scheme to get him back on board.

Gwan-seok and Hee-dong reach Mok-po, facing a rough welcome from Captain Hwang and Beol-gu's gang before they search for the shipwreck's exact location.

Gwan-seok, skilled at finding money, joins Hee-dong to pursue rumours of a sunken treasure. The two set off in pursuit of a potential fortune.