New York advertising executive Jim (Alex Hyde-Wright) is working on a dreary advertising campaign when he is suddenly zapped through time and witnesses a plane crash, an old biplane. Later, he is visited by the mysterious Air Commodore Raymond (Peter Cushing) who tells Jim that he is linked to an aviator from the First World War, James Bigglesworth aka Biggles (Neil Dickson)!
Soon, Jim and Biggles are zapping to and fro each other's times. Biggles encounters the oddness of 1980s London, and Jim the trenches and aerial combat (so it seems Biggles got the better deal). Soon, they must work together to defeat a powerful German secret weapon which could win the war and change history...
If you have read a Biggles story you will wonder why they had to do the story this way, and turn it into a fairly generic time travel story. It isn't that bad a film, indeed the action sequences are often pretty good, but you can't help but feel a bit disappointed.