One of the worst storms in years is raging on the crab grounds, but the crab fishing fleet must continue its hunt for the deadliest catch: Alaskan King Crab. In spite of a torrential downpour and a blinding snowstorm, the crews push on.

After a profitable offload on Akutan Island, Captain Sig Hansen and the Northwestern crew are back on the trail of the Alaskan King Crab. Meanwhile, the crew of the Maverick witness a change in command as their Captain stands down.

The Aleutian Ballad is knocked on its side by a vicious wave, stripping the ship of power and leaving the crew scrambling in the dark. Meanwhile, the exhausted crews of the Time Bandit, the Maverick, and the Rollo endure rough weather.

Rollo and Maverick race back to the crab grounds after a heavy offload on St. Paul Island. The Rollo's Captain Eric is cross with his crew after miscalculation results in forty thousand more pounds of crab than scheduled.

Facing the end of the season, the fleet is scrambling to the deep and pushing the fishing into overdrive. But when the job is over, a new challenge awaits-getting back to port in one piece.