Sig pushes Mandy to invade the Cornelia Marie's ground. As the Cornelia Marie's pots get tangled with the Northwestern's, Casey takes extreme measures to defend his turf. A Saga distress signal sends panic across the fleet.

As rogue waves threaten to capsize their boats, Jake and Sean must make life or death decisions for their crews on deck. Wild Bill faces a choice that could end his career, and Keith returns to the Wizard put an unexpected end to his brother's rule.