Near the end of the Cold War, a CIA counter-intelligence officer begins her quest to uncover the mole in her organization, who is endangering the lives of a group of covert CIA assets in the Soviet Union. Based on Circle of Treason: A CIA Account of Traitor Aldrich Ames and the Men He Betrayed by Sandy Grimes and Jeanne Vertefeuile.
Actors:
Jodie Whittaker as Sandy Grimes,
Paul Rhys as Aldrich "Rick" Ames,
Harriet Walter as Jeanne Vertefeuile,
Ralph Brown as Wallace Austin,
Stuart Milligan as Arthur O'Neill,
Christina Cole as Louisa Tilton,
Julian Ovenden as Gary Grimes,
Lex Shrapnel as Mitch Weaver,
Genre: Drama
