As ice blocks St. Paul Harbor, captains race to deliver their final snow crab. Sig deploys a risky tactic his father pioneered, while Jake battles a slack tank to save the Saga. Keith and John scuttle a plan as the Wizard's 77-year-old hull cracks open.

The icy depths of the Bering Sea threaten to claim Sig and Wild Bill's gear unless they can move quickly enough to beat the rapidly freezing waters; Rip takes on a massive amount of extra quota, and if he can't catch it, he'll have to buy it.

With intense currents holding back the Arctic ice pack, Keith drives into deck-wrecking waves to retrieve his catch before the ice bounces back; Jake and Sean face losing everything when ice swallows their gear as Rip enters a pot cemetery.

With intense currents holding back the Arctic ice pack, Keith drives into deck-wrecking waves to retrieve his catch before the ice bounces back. Jake and Sean face losing everything when ice swallows their gear as Rip enters a pot cemetery of his own.

After risking his crew salvaging gear from the ice pack, Sig changes tactics deploying an experimental bait from Norway. On the Time Bandit, frustration boils over as Freddy tests Johnathan. Jake hauls in seas so volatile his crew must take shelter.

Shaken by a life-threatening injury and Coast Guard rescue from his deck less than a year after tragic loss of a much-loved deckhand, Captain Rip Carlton puts the Patricia Lee in drydock for a massive renovation to safeguard his crew for the future.

The Cornelia Marie crashes into the ice pack when the greenhorn on watch falls asleep at the wheel. Jake's crew experiences a stunning phenomenon when a flock of seabirds bombards the Saga. Wild Bill tackles an unsafe sea state on the Summer Bay.

Josh and Casey race to the approaching ice edge as an Aleutian storm slams the opilio grounds. Jake discovers his niece and engineer have been hooking up more than crab gear as they risk life and limb climbing the 30ft crane to make a critical repair.

As winter weather unleashes havoc on the crab grounds, the deadliest harbor in the Bering Sea becomes the only port open for delivery, forcing the crab fleet to make high risk entries into a harbor that has claimed the lives of many fellow fisherman.

Keith recruits Johnathan to intercept a Russian trawler fishing illegally in US waters but the situation intensifies when the Time Bandit crew spots a missile streaking across their position. Bill and Sean fight to defend their pots from rogue trawlers.

Sig is forced to jettison pots lest he capsizes the Northwestern; Jake and the Saga hit bottom; Sean Dwyer devises creative motivation for his greenhorns.

New-mother Mandy returns to Sig's wheelhouse but as heavy ice builds on the Northwestern, she reckons with the risks the family is taking. Jake unveils a new super pot to stake his claim in the unforgiving cod derby as winter weather blindsides the fleet.

The Northwestern loses steering when a bald eagle lays claim to its mast. Sig and Keith develop an unusual partnership to tank Bairdi in record time. Josh and Casey place a risky bet on hard-to-find quota, while casualties mount on the Patty Lee.

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.

Batten down the hatches as Mike Rowe and the captains reveal unfiltered takes and unseen footage behind the decisions and events leading up to the milestone 300th episode of Deadliest Catch and the epic 18th Winter season premiere.

In an epic Fall season finale, Clark scuttles Sig's partnership with Harley to get home for the birth of his and Mandy's baby. An orca leads the Cornelia Marie to the season's best pots. When John's autopilot fails, Jake is the star that leads him home.

With dock prices spiking, the fleet races to deliver. Jake witnesses a freighter severing his longline, forcing the Saga crew to drag the bottom for a valuable string of pots. Rip helps Johnathan locate the motherlode only to pay with a broken block.

Jake fishes his ancestors' waters and Josh experiments with glow sticks.

Mandy's pregnancy complication forces Sig and Clark to reconsider their stand. Jake and Rip team up in deep waters to battle powerful Aleutian tidal currents.

Johnathan pulls an unknown species with mile-deep commercial crab pots. Jake's niece gets injured on the Saga and Clark takes the helm in Sig's wheelhouse.

Johnathan searches for a pot of Golden Kings at the end of a double rainbow. A medical mystery confounds Captain Rip when his greenhorn regains consciousness on the Patricia Lee. Keith partners with Josh and Casey until John steps in.

Sig scrambles to get home for Bairdi and Mandy's baby as his crew finds a honey hole of Russian King Crab. Josh's brother Shane gets caught in the bight as a typhoon slams the Cornelia Marie. Rip faces a crisis when a greenhorn collapses unconscious.

When Shyanne discovers a serious breach on the Saga, Jake and his crew scramble to save it from capsizing. In Norway, Sig drops pots on Russia's western line. As canneries close their doors, Josh and Casey call in a last-minute favor from Johnathan.

Sig struggles with a Norwegian crewman who thinks he knows more than the captain. Captain Wild Bill fights to save his boat from the rocky Norwegian coastline with a line snarled in his propeller. Keith's greenhorn faces a violent brush with death.

His deckhand crushed by pots, Captain Rip charges into the Arctic storm to attempt the riskiest USCG helicopter rescue in recent history. John fights to save the Time Bandit at anchor, while Sig takes his first Norwegian rogue wave, flooding the Staalbas.

The U.S. Coast Guard prepares for future dangers and risky rescues.

An Arctic storm slams the fleet already reeling from the closure of King Crab. Seeking a new species, Johnathan sets pots deeper than ever before. Sig struggles to launch his Norwegian operation, while a deckhand fights for life on the Patricia Lee.

When the government closes the King Crab fishery, captains must save an industry they worked so hard to create. Sig pursues invasive Russian King Crab in Norway; John, Josh and Casey chase rising prices for a new species, and Jake mortgages the Saga.

John and Sig rally the skippers and devise a plan to avoid financial ruin.