"The entire station will be placed on World War II footing with staff in period costume and the station dressed in full 1940s regalia with sandbags, watch tower and a display showing how London Underground kept the capital moving during the war." Handy if last week's Tube strike gave you that "let's all pull together, spirit of the blitz feeling".
While you're there, you can visit the nearby RAF Museum to get into the full war time swing of things. "The Hendon Pageant takes the theme of Summer of 44 -The Flight Path to Liberty. There will be a chance to meet re-enactors and view military vehicles, fire engines and ambulances from the period. Special tours, talks and interactive workshops will also be taking place. Learn First Aid 1940s style courtesy of St. John Ambulance, enjoy rousing music and swinging beats with our 1940s concerts, meet the Land Girls, Air Raid Wardens and members of the Service and learn what a normal day was like for these individuals in 1944."
Thanks to Ianvisits for the heads up on this. There's more details on the following page, but please note that tickets for the 1938 tube ride are now sold out. Although you'll still be able to see the trains making the journey from Edgware via the Kennington Loop to Colindale station.