Shot on location in Port Isaac, England, DOC MARTIN'S PORTWENN is a new behind-the-scenes look at the international hit series Doc Martin. The program features revealing interviews with cast members, a look at the town known as Portwenn, and a unique guided tour of the sets from producer Phillippa Braithwaite. The special, filmed during the sixth season, also contrasts rehearsals with final content to provide viewers a fascinating look at how the finished product is made.