Anchor Anger: Tensions between rival captains Carraro and McLaughlin finally boil over. Plus, TJ and Dave put their new crew members through the wringer. (S4, ep 2)

First Blood: The new fishing season kicks off in Gloucester, Massachusetts, and every captain in the fleet wants to land the coveted first catch. Who will strike it lucky? (S4, ep 1)

Maritime Murder: Investigators scrutinise a ship full of suspects when a naval officer is poisoned at sea. Which of the many theories surrounding his death is true? (S4, ep 13)