The Cornelia crew fights to save its gear from sea ice; Jake risks the far north to fill his tanks before his son's birth; amid news of a looming pandemic, Russian boats mysteriously disappear and captains race to dock before crab prices crash.

Saga loses a veteran deckhand, forcing Jake to steam a greenhorn army to the Russian line; amid scuttlebutt that ports are closing due to a virus, Josh fights to get home for a reunion with his brother; Sig's daughter gets rushed to the hospital.

As the fleet mounts a final winter season push, sad news rattles the Cornelia Marie wheelhouse; Lady Alaska greenhorn Gabby overcomes a painful injury to support her crew; Wild Bill's deckhands must devise a bush fix or face hauling pots by hand.

As the super snow-moon storm peaks, the Cornelia Marie's deck becomes a gauntlet for Josh and Casey's greenest greenhorn. Ice fog overtakes the fleet as Monte scrambles to stay afloat, Harley loses an engine and Junior fights a sea-flea infestation.

A rare weather event churns up rogue waves as supermoon tides collide with a cyclonic snowstorm; Josh and Casey face a 55-foot monster; Jake risks capsizing to repair his rudder in unruly seas; Monte's big move north pays off in massive pots.

Sig and Mandy conspire to get Jake to do their prospecting, but the former deckhand seizes the moment to fill his own tanks; the Wizard crew must break through ice to rush Keith to a doctor; Junior fears the worst as a deckhand falls from the stack.

Josh and Casey race to haul pots as engine failure threatens their delivery window; as seawater destroys his hydraulic motors, Junior attempts a risky high seas delivery of three new motors; Harley and his crew bang heads over his fishing strategy.

Stuffed pots come at a price as Jake scrambles to repair a slack tank before it kills his crab or capsizes the Saga. Josh and Casey's rudder fails in heavy traffic and Wild Bill's new greenhorn makes an easy target for an out-of-control picking hook.

As an injury knocks Sig out of his wheelhouse, Mandy takes the helm to face a disgruntled Northwestern crew; on the Wizard, damaged hydraulics and an umbilical hernia deal Keith a double gut punch; Josh and Casey suffer tragedy on the Cornelia Marie.

The Wizard catches fire in a violent storm known as a bomb cyclone; Josh and Casey attempt to fish in 30-foot seas; two rogue waves slam the Southern Wind; bringing himself to the brink of collapse, Wild Bill grinds his crew for 72 straight hours.

On the Summer Bay there's hell to pay when Bill's backup block goes missing; Cornelia Marie skippers Josh and Casey navigate a tenuous partnership at the Russian line; weighed down by three full tanks, Sig puts a heavy Northwestern in Mandy's hands.

Listing heavily and taking on water, Junior calls on chase boat rescue for the first time in series history; Wild Bill sends Nick 20 feet off the deck in spite of his fear of heights; Josh and Casey hit a massive wave that knocks out greenhorn Maria.

Facing a 500-mile wide Siberian storm, Josh takes a big risk to keep the Cornelia Marie crew safe; Junior loses control of his rudders putting his boat at the mercy of heavy seas; Jake's greenhorn problems get a lot worse when one clogs the toilet.

As the crab biomass migrates across the Russian line, Josh and Casey dump 175 pots on the border; Sig and Mandy go dark ship in towering seas; Jake's new deckhand gets injured; Junior attempts to steam through False Pass in a nighttime blizzard.

The Coast Guard responds to a Mayday call as captains and crew brace for the loss of friends during a brutal winter storm; Sig and Monte track an Opilio hoard at the Russian line; the clock is ticking for Wild Bill and Junior during the cod derby.

Co-captains Jake and Johnathan try to form an alliance with rival Keith Colburn; Junior risks crossing into Russian waters for golden crab; Josh bets it all on a gut feeling; Wild Bill turns to his last resort and seeks work in Russia.

The Cornelia Marie uses US satellites to spy on the Russians, Scott pioneers a dormant fishery and Wild Bill faces off with a Russian greenhorn.

With the Russian menace looming, co-captains Johnathan and Jake blast a shotgun at their problems while a vicious fistfight breaks out on the Seabrooke; Wild Bill blows an engine and Mandy bets on science to get back on crabs.

Still reeling from deadly typhoon Hagibis, the fleet claws its way back into competition against the Russians; the pressure to make up ground has mounted and it's do-or-die for the captains, even if it means danger or even war.

Just as the fleet begins its race to beat the Russians, ferocious typhoon Hagibis turns its deadly gaze on the Bering Sea; captains must choose whether to risk life and limb for a big payday or to sit out the storm and fish another day.

A dramatic change in the Russian crab industry rocks global markets and drives new competition between Dutch Harbor captains and their Russian adversaries; as crab prices skyrocket, legendary captains return to claim their piece of a historic payday.

Mike Rowe digs deep into the action on the Bering Sea; Junior reveals how he rescued a lost pot and found a new species of crab; Vasilly defends his job on the Summer Bay; Johnathan admits for the first time who the better captain was, Sig or Phil.

Mike Rowe reveals exclusive content and breaking news on the Bering Sea; Josh and Casey look to the future of Bloodline; Jake and Sig go head to head, and Junior has a big announcement.

The captains grapple with the loss of their friends on the Scandies Rose; Junior narrowly escapes disaster; Johnathan speaks out about the Time Bandit.

Mike Rowe connects with captains and crew about survival on and off the crab grounds; Johnathan and Jake give an inside account of running aground; Keith and Junior debate right of way on the high seas; Josh and Casey introduce new deckhand, Maria.

On the 10th anniversary of Capt. Phil Harris' final season on the Bering Sea, Josh Harris makes a personal journey to rediscover what made his father a legend and embrace the legacy he inherits as Phil's son and co-captain of the Cornelia Marie.

Capt. Wild Bill heads to Russia as captain-for-hire; as an opilio biomass concentrates along the Russian line, the Dutch Harbor fleet must prepare for a winter season far to the north where ice and waves are most severe and rescue is out of range.

Mike Rowe calls on the captains to break down a deck feud on the Seabrook, describe how Phil Harris' legacy still impacts fishermen across the country and explain why Hillstrand Yoga just isn't for everyone.