This BAFTA award winning TV series from the BBC returns for its third series and continues to follow the often dangerous lives of trawler fishermen off the coast of Scotland. Each episode focuses on this often hazardous occupation and through very human stories we witness how the fisherman crews survive battling the elements on their quest to bring home the perfect catch. In episode 1 it is winter and the fishing fleet is safely in harbour, except for two boats. The Ocean Venture's young skipper, John D Buchan, has a point to prove to his dad, and he is ready to sail all the way to the coast of Norway to make it. On the Arcane, 20 miles off the Shetlands, another father and son team, Charlie and Charles McBride, have debts that leave them no choice but to take on the weather. Episode 2 sees Father and son team Charlie and Charles McBride have a disastrous week when they lose their best fishing net, their boat loses power. With massive debts, they have no choice but to attempt to retrieve the net from the bottom of the North Sea. In episode 3, Chaz Bruce and his crew on the New Dawn find a rope wrapped around the boat's propeller, but skipper Chaz is relentless to put into port. On the Amity, Jimmy Buchan's luck seems to have turned - until disaster strikes in the engine room and the safety of the boat and its entire crew are at risk. Episode 4, out in the treacherous North Atlantic, Alan Watt finds himself with a giant catch of lucrative monkfish, but when the main winch jams the entire trip is in jeopardy and the skipper must fix the problem. In episode 5, on the North Sea the trawlers Ocean Dawn and Sunrise work together. This fishing trip will be their toughest yet as ferocious weather and problems with a new net bring unexpected pressures to this successful working relationship. In the final episode John Buchan Snr, skipper of Ocean Venture leaves familiar territory to embark on an expedition into the Atlantic. He also has a close encounter with a Spanish trawler which spirals unexpectedly into an international incident.