In the Devon town of Teignmouth, mussel fishermen Matt and Barry Sessions look at new ways to diversify their business to ensure its future. To maximise their catch and use mussels that can't be sold commercially, Barry's producing his own gourmet smoked mussels from a specially built smoker, which they plan to sell to local restaurants and fishmongers. On Dartmoor, farmer Steve Alford and his partner Hayley hope to tap into the growing popularity of glamping, so with the help of Hayley's father, build a cosy shepherd's hut to rent out to tourists during the holiday season.