New blood joins familiar faces in pursuit of a lucrative new crab fishery. As the Coast Guard encounters a surge of illegal foreign vessels at sea, perils mount for the new generation and legendary captains share the secrets they'll need to stay alive.

Sig gets tough news at sea forcing the Hansens to make a critical decision as John and Andy lend a hand. With wheelhouse ambitions, Jacob hits a wall with Keith on the Wizard. New captain Jack crosses a line when Harley makes a deal with Jake.