Dec 21, 2013 Updated: 9:27 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.
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