Captains take on the steepest waves yet in an epic final surge to hit their quotas. Jake fights through a debilitating crew injury on deck. Josh gambles big on his crab count, while engine failure leaves Sig dead in the water.
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.
An arctic gale batters the fleet. For the second time, a greenhorn's life hangs in the balance aboard the Summer Bay. When the Saga seeks shelter in St. Paul Harbor, tidal forces snap Captain Jake's anchor.
Sig pushes Mandy to invade the Cornelia Marie's ground, sparking a battle for the crab. 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.
A greenhorn's life hangs in the balance as the Summer Bay crew scramble to steal one of their own from the Bering Sea's icy grip. Saga and Cornelia Marie battle colossal waves of the supermoon storm, while Mandy tackles her first haul in extreme weather.
A 150-year supermoon storm wreaks havoc on tides, churning undersea currents that rip pots right off their lines. The Coast Guard attempt a rescue mission in the heart of the storm, while Wild Bill faces his worst nightmare as a greenhorn goes overboard.
It's baptism by fire aboard the Northwestern as Mandy takes her first shift in heavy seas; the Wizard crew battle over one crewman who isn't pulling his weight on deck; caught short on bait gear and battered by high seas, Wild Bill changes his strategy.
A massive tidal surge threatens Josh and Monte as they chase their bounty deep into an arctic storm. Wild Bill hopes to get his broken boat off the dock. The rest of the fleet arrives for the start of Opilio.
Captain Jake faces unexpected challenges on an eerily calm Bering Sea; Captain Sig seeks retribution for his son-in-law's prank; and Captain Bill fights to make his final delivery after a punishing season.
A massive arctic hurricane shocks the fleet with high winds and big waves, and an unstable stack threatens to capsize the Saga. As the captains rush to pull and set pots before harbor, Wild Bill risks driving straight into the storm to snatch his quota.
Keith fights to keep the Wizard afloat, as a flooding collision void threatens to sink him; a missing boat part leaves Jake stranded at sea; and Sig gets ready to pass the torch to Edgar, but the brotherly tension rises when he can't give up the reins.
Sig embarks on a daring midnight mission to shake his rivals. The Cornelia Marie pays the price for a rotten alliance, and an injured deckhand could force the boat in early. Keith gets big news from his doctor on a mystery illness.
Wild Bill risks it all on a new bait and fish strategy, hoping it will pay off big. Sean and Casey forge an alliance, but betrayal may occur when one strikes crab. A dangerous mistake jeopardizes Jake's offload. The Cornelia Marie is hit by bad weather.
The Bering Sea draws first blood in a daring Coast Guard rescue; Jake strives to become an independent captain; Keith offers to take him on as an apprentice, but accusations fly and suspicions grow as the captains plunge head first into a brutal start.