SeasonsevenofBritishspythriller"MI-5"openswithAdamCarter(RupertPenry-Jones)valiantlybattlingtomoveacarbombawayfromadenselypackedmemorialservice.MeanwhileHarrysecuresthereleaseofLucasNorth(RichardArmitage),aMI-5officerimprisonedinRussiaforeightyears.I...