Aug 30, 2014 Updated: 8:16 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.
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Ruth attracts a mystery admirer when she appears on Radio Portwenn; Doc and Louisa find a replacement nanny; and one of Louisa's pupils reviews Bert's restaurant in the school magazine.
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