暂无简介MI-5 is having a particularly busy day. They have just exchanged spies with the Russians and welcome the return of Lucas North after 7 years of imprisonment. Harry Pierce's Russian counterpart, Arkady Katchimov hints however that they will soon have another agent in custody leading Connie James to try and call off an operation in Moscow that is literally minutes away from happening. Simultaneously, an Al Qaeda splinter group has kidnapped a soldier, Andy Sullivan, who has just returned from a tour of duty in Afghanistan. They release a video threatening to decapitate him if Remembrance Sunday ceremonies aren't canceled. MI-5 learn from the information gathered in Moscow that Al Qaeda is planning a much bigger attack in London.