Watch Cambridge Spies

During the Cold War, Maclean is passing atomic energy information to his Soviet contact. Burgess becoming increasingly self-destructive.

Chronicling the story of the most infamous double agents in British history. Anthony Blunt is sent to Germany to retrieve sensitive documents.

Benedict Cumberbatch appears in this second episode of Cambridge Spies. The group go underground as part of the establishment: Blunt is close to the royal family, Maclean joins the Foreign Office, Burgess is in MI5 and Philby is a journalist.

At Cambridge in the 1930s, don Anthony Blunt and student Guy Burgess recruit fellow students Kim Philby and Donald Maclean to fight fascism by spying for Soviet Russia.