Covering the entire history of 20th-century treason and spying, one of Britain's leading investigative journalists examines the reasons, money, sex, ideology, power, adventure, that have driven men such as John Walker, Kim Philby, Christopher Boyce and Andrew Lee to treason.

He examines betrayal in all its forms, delving inside the complex personalities of the most damaging spies from the United States Britain, Russia, Germany, Poland, and elsewhere.

Also available on our Facebook page Traitors: The Labyrinths of Treason