Deadliest Catch: On Deck

The captains eye comebacks.

Keith and Junior form a covert alliance on the Bering Sea; Elliot debuts his new boat on the dangerous blue crab grounds; the Northwestern crew faces a surprise challenge.

Injuries and sickness plague the Seabrooke and the Wizard.

Junior and Elliott team up.

Tempers flare aboard the Northwestern.

Sig reclaims the Northwestern; Jake pursues his dream of becoming a captain.

A massive arctic storm causes headaches for the fleet.

Mechanical malfunctions and severe weather test the captains' resolve.

The Wizard crew's fishing strategy gets them in trouble with the law.

Edgar takes a big risk; a sinking ship prompts a rescue attempt.

Junior's condition worsens; the Northwestern experiences dangerous technical problems.

A career is threatened; a captain struggles to check in to rehab.

Jake Anderson tries a dangerous short cut with only one working engine on the boat; Casey and Josh perform surgery at sea; Edgar Hansen captains the ship while his son Eric works as greenhorn; Captain Keith turns his life around.