Jul 24, 2014 Updated: 12:09 AM
A modern, edgy drama full to the brim with passion, politics and peril. MI-5 leads us into the dangerous world of Britain's top-secret security agency, and into the lives of people who must lie, and sometimes die, for a living.
VISIT THE BBC's MI-5 WEB SITE
The town celebrates Portwenn Fun Day; a culinary rivalry erupts between Large's restaurant and the Crab and Lobster pub; Louisa's mother arrives for an unexpected visit.
Find out about upcoming shows, special events, and discounts.