It must have been terrible to have to share a stage/screen with Margaret Rutherford. She only had to look at the camera and she had already stolen the scene - a consummate comedy actress whom, alongside Frankie Howerd, keeps this rather daft crime caper bubbling along quite nicely for 75 minutes. A pea-soup fog has delayed all the flights from London's Heathrow Airport - as was it's wont back then - and so a motley collection of passengers are having to take a coach to a nearby airport. Unbeknown to them, though, there has been a daring raid on a warehouse at the airport and their bus contains ...