Talks and tours – online and in-person
Book your place to join us at The National Archives, Kew or live online for exciting MI5-related events.
Exhibition
MI5: Official Secrets
A groundbreaking exhibition, opening this spring
5 April to 28 September 2025
Free
About MI5: Official Secrets
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 will go 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 will take you behind the scenes of one of Britain’s most iconic institutions.
In partnership with MI5.
Exhibition highlights
In pictures
Have a sneak peek at some of the nearly one hundred items going on show in this exhibition:
Plan your visit
The National Archives is the official archive of the UK government, and England and Wales. We are the guardians of over 1,000 years of iconic national documents.
Everyone is welcome to visit our headquarters in Kew. We put on exhibitions, events and displays and offer reading rooms giving access to our collections there.
The National Archives is located by the River Thames in Kew, 30 minutes from Central London. We offer advice on travelling to us by car, bike, train or bus.
Everyone is welcome to visit MI5: Official Secrets once it opens.
- There will be step-free level access throughout all areas
- The exhibition will have low lighting levels
- It will include pictorial, audio guides, information boards, televisions/screens and interactive exhibits at a suitable height for a wheelchair user
- Large print guides will be available
We provide a warm welcome to visitors of all ages, including children and family groups.
- Explore the exhibition together with our MI5: Official Secrets family trail (for ages 8+) and decode a secret message
- Free activity sheets (for ages 1+) are available from the Time Travel Club trolley in our entrance hall
- Our café is child-friendly and there are picnic benches outside
- Prams and buggies are welcome, and we have a buggy park
- Baby changing facilities are located by our entrance hall, at the top of the main stairs, and in the library
- Emergency supplies of nappies and wipes are available
We have a café and coffee bar provided by Maids of Honour, a historic local tea room and bakery. It has spacious indoor and outside seating and a soft play area.
On the menu is a variety of high-quality lunchtime meals, sandwiches, snacks, soft drinks, tea and coffee. Vegetarians, vegans and other dietary requirements are all catered to.
Events
Family events and activities
Discover spy-themed activities for children and families – and more – at the National Archives.
Spy stories
The story of
Karl Muller and the fatal lemon
When can a lemon have fatal consequences? If it proves you are, in fact, a wartime spy…
The story of
Anthony Blunt's confession
Security Service files paint a vivid picture of what happened when Anthony Blunt – then employed in the royal household – admitted spying for the Soviet Union.
The story of
The double agent who hid D-Day from the Nazis: Elvira Chaudoir
Learn how a daring spy played a cunning role in the Allied invasion of Normandy.
Confessions from the Cambridge Five: a file release from MI5
Discover fresh perspectives found in the latest MI5 documents to be released, in this blog from exhibition curator Mark Dunton.
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