The U.S. Coast Guard desperately scours the Bering Sea for a missing crab vessel, while the fleet anxiously waits to discover the fate of its six-man crew. After a plea from his wife, Sig contemplates an early exit.

Saluting Capt. Phil Harris, who died on Feb. 9, 2010.

After Keith suffers a cardiac event at sea, Monte races to get his brother to the nearest airstrip for medivac. As the fleet prays for Keith's safety, the Wizard crew must navigate the notoriously dangerous port entry at Saint Paul in perilous conditions.

An Arctic mega-storm rocks the fleet. Sig plays cat-and-mouse with towering waves. Keith watches an 800-pound crab pot launch into a deckhand's spine. Wild Bill fights for a comeback.

Sean is set on a collision course with another boat, two deckhands get taken down on the Wizard, and Jake almost loses a deckhand.

In the Winter premiere, the fleet reels from the loss of Summer Bay deck boss Nick McGlashan. Wizard and Cornelia launch early into a massive Arctic storm. Johnathan can't see eye-to-eye with an old friend and shocking news forces Sig to change his plans.

The most menacing storm of opilio season moves in on the fleet. A rogue wave terrorizes the Cape Caution, ripping steel and timber. The Wizard crew races to plug a gushing leak. The Saga, captained by Jake Anderson, is nearly capsized by a 40-foot wave.

When polar ice descends, the skippers must choose to stay or flee; the Saga is in danger of sinking; Josh takes a huge gamble; Sig and Johnathan race to rescue gear.

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.

Three boats hit the grounds early. Johnathan struggles with a rogue deckhand. Jake prepares for the birth of his baby. An explosion causes doubt about Zack's dedication.

Superbowl Sunday & the Bering Sea: The Cornelia Marie hatches a scheme to watch the Seahawks play. An injured crewman jeopardizes Captain Keith Coburn's plan on the Wizard. The Cape Caution crew makes a near fatal error. The Time Bandit loses a Captain.

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.

In the Winter premiere, nautical weather slams the fleet as Josh and Casey race north in hopes of beating the coming ice pack. Sig and Keith attempt to find common ground, and on the Time Bandit, Johnathan finds his co-captain a bit wobbly. 300th episode.

A 12-million pound Bairdi quota increase causes a fishing frenzy. A boat is stolen on the eve of a launch. An alliance takes root.

The fleet goes into a fishing frenzy for additional millions. The Time Bandit and Wizard bury the hatchet. Josh learns a difficult lesson.

With Super-Typhoon Nuri closing in, the captains make hard choices to save the seasons. The Northwestern charges into the storm, Cape Caution retreats, and the Wizard gets a replacement deckhand.

King Crab season draws to a close. Casey forces Josh to fish at full throttle on the Cornelia Marie. Jake takes another turn at the wheel on the Northwestern. Wild Bill turns up the heat on the Coast Guard.

Christmas at sea for the Time Bandit is disturbed when an unhinged deckhand terrorizes the crew. Jake Anderson awaits the birth of his baby, when an unexpected phone call throws a wrench in the plan.

A 600 mile wide storm continues to batter the fleet. Rookie skippers Jake Anderson and Josh Harris struggle to keep their heads above water while veteran captains Andy Hillstrand and Sig Hansen charge straight into the heart of the tempest.

The polar ice pack descends, threatening the season; Jake leads his crew in bad conditions; Sig tries to offload his crab; Keith grinds to the finish.

An adrenaline-packed new season brings a new face: 23 year-old Sean Dwyer –fighting for the legacy of the father he lost too soon. The Time Bandit squares off with the law, Captain Keith’s life spirals, and Sig torments his former protégé.

Wild Bill risks his biggest lead in history to bail Josh Harris out of trouble. Sean Dwyer finds out if he has got what it takes. Veteran skipper Johnathan Hillstrand leans on his crew and a little tip from a friend to turn his season around.

Intense weather and more damage to his battered boat take a toll on Sig's heart. The USCG attempts a dangerous medevac. Bill struggles with a water leak. Jake recruits an old friend.

Sig fights to survive a massive heart attack. Bill learns a dark secret about his son. Josh fights to prove himself. Jake learns a valuable lesson. Johnathan appeals to the gods.

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.