About

Step inside the hidden world of MI5 and explore the extraordinary stories behind the security of a nation.

For the first time, MI5’s history is on display to the public in a major new exhibition, made possible through an unprecedented partnership between the Security Service and The National Archives.

Explore the ever-changing world of espionage and security threats through original case files, photographs and papers, alongside the real equipment used by spies and spy-catchers over MI5’s 115-year history.

From counter-espionage and daring double-agents during the world wars, to chilling Cold War confessions and the counter-terrorism of recent times, this historic exhibition takes you behind the scenes of one of Britain’s most iconic institutions.