The story of Joan Stanley, who was exposed as the K.G.B.'s longest-serving British spy.
Director: Trevor Nunn
Cast: Judi Dench, Sophie Cookson, Stephen Campbell Moore, Tom Hughes, Nina Sosanya, Laurence Spellman, Nicola Sloane, Tereza Srbova, Freddie Gaminara, Raj Swamy, Adrian Wheeler, Ben Miles, Lulu Meissner, Phill Langhorne, Mike Sykes, Ed Birch, Debbie Chazen, Robin Soans
Genres: Biography, Drama, History
Seasons: