Sig and Jake have a massive falling out, leading to new strategies and new alliances. Josh Harris returns to captain his father's boat. Sean plays dirty, but Wild Bill shows him he's messing with the wrong Captain. With big rewards, come big risks.

Bering Sea draws first blood in a daring Coast Guard rescue. Jake strives to become an independent Captain, and 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.

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 when one strikes crab, will he betray it? A dangerous mistake jeopardizes Jake's offload.The Cornelia Marie is whipped by bad weather.

Sig takes heads off the grid 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.

As a flooding collision void threatens to sink him, Keith fights to keep the Wizard afloat. A missing boat part leaves Jake stranded at sea. Sig gets ready to pass the torch to Edgar, but the brotherly tension rises when he can't give up the reins.

A massive arctic hurricane hits the fleet with high winds and big waves. On the Saga, an unstable stack threatens to capsize the boat. Wild Bill risks driving straight into the storm to catch his quota, while the other captains rush to pull and set pots before harboring.

Jake makes a devil's bargain, huge crab for hidden perils, until his boat itself is on the line. Sig serves cold justice at sea, while Wild Bill chases a King Crab jackpot.The Cornelia Marie crew learns when you bet on a boat, the house always wins

On the brink of failure, Josh Harris discovers secret fishing grounds in his late father's logbooks. A deck mishap on the Saga could end Jake's season. The Coast Guard braves pitching seas in an attempt to hoist an injured sailor from inside a ship's tank

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.

A blackout leaves the Saga close to disaster in unfamiliar waters. Unwilling to partner, Josh must fill his quota single-handedly. Keith makes an offer only a captain could refuse.

Winter season unleashes 40 knot winds & 20 foot waves. As accidents plague crews, the Bering Sea singles out one greenhorn for the worst. Strategy is critical with the crab on the move, and tension between Wizard co-captains reaches a breaking point.

It's baptism by fire aboard the Northwestern as Mandy takes her 1st shift in heavy seas. The Wizard crew battles over one crewman who isn't pulling his weight on deck. Caught short on bait gear & battered by high seas, Wild Bill changes his strategy.

A 150 year supermoon storm wreaks havoc on tides, churning undersea currents that rip pots right off their lines. The Coast Guard attempts a rescue mission in the heart of the storm, while Wild Bill faces his worst nightmare.

A greenhorn's life hangs in the balance as the Summer Bay crew scrambles to steal one of their own from the Sea's icy grip. Saga and Cornelia Marie battle colossal waves of the supermoon storm, while Mandy tackles her first haul in extreme weather.

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.

A severe arctic gale batters the fleet, forcing captains to fight extreme wind and waves. For the second time, a greenhorn's life hangs in the balance on the Summer Bay. The Saga crew seeks shelter at St. Paul, where tidal forces snap Jake's anchor.

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.

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; engine failure leaves Sig dead in the water.