Jul 23, 2014 Updated: 9:34 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
Section D tries to stop a plot to assassinate the U.S. president, who's in the U.K. for secret Israeli-Palestinian peace talks.
Find out about upcoming shows, special events, and discounts.