The true story of the Agent Fifi, whose mere identity was only disclosed in September 2014 as Marie Chilver.

"At least 36 French women were infiltrated into France as secret agents during World War Two. Twelve were arrested and ten executed. Some were landed by gunboat

Dickie Metcalfe was not your typical secret agent, but he was larger than life in more ways than one. Unlike many other agents who were part of the Double Cross

Mathilde Carré, notoriously known as La Chatte, was remarkable for all the wrong reasons. Like most spies she was temperamental, scheming and manipulative –

Norwegians trained in industrial sabotage at Brickendonbury Manor, near Hertford, U.K. were infiltrated by the 'Shetland Bus', fishing boats, motorboats, submar