Believing that Arkady has deliberately misled them Daddy and his team shadow him and discover that he has a wife and young daughter whose existence he wants keeping secret from the KGB. He assures then he passed on the information about Operation Glass in good faith, naming embassy employee Bogdan as his source and promising that Bogdan will reveal his contacts. However Bogdan is killed and Arkady is shot by Odin, leading Daddy to assume that Odin was tipped off by a traitor in MI5. Meanwhile Alan is angry to learn that Sarah is sabotaging his plans to start a family and Bobby faces accusations of importuning men for sex.
—don @ minifie-1