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.

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.