Season seven of British spy thriller quotMI5quot opens with Adam Carter Rupert PenryJones valiantly battling to move a car bomb away from a densely packed memorial service Meanwhile Harry secures the release of Lucas North Richard Armitage, a MI5 officer imprisoned in Russia for eight years It#39s not long, however, before Ros begins to suspect Lucas#39 loyalties The rest of the season deals with a top secret Cold Warera operation named Sugarhorse
