After Martin Clunes' last turn as grumpy Portwenn medic Martin Ellingham, cameras follow the Doc Martin cast and crew filming its 10th and final series. Inspired by the 2000 film Saving Grace, the saga has been so successful, it led to fan Sigourney Weaver making an appearance, as well as assorted adaptations around the world. Narrated by Caroline Catz, better known as the hero's long-suffering wife, Louisa.