Danger! Unexploded Bomb

After last week's vivid opener, part two picks up the story of wartime bomb disposal in September, l940, when the Germans' ability to stay one step ahead with increasingly sophisticated time-delay fuses in their bombs had the British boffins in disarray.

Hitler's Weapons Development Head, General Marquard, produced first the murderous Butterfly Bomb, then the Y-Fuse, designed to kill on contact but mismarked to fool the bomb squads.

However, through a mixture of good luck, immense bravery and ingenuity, the tide was turned - though, of course, some bombs were never found in time.

Tonight survivors, with the usual remarkable archive footage and well-staged dramatic reconstructions, tell their tales.

Sadly, although 50,000 unexploded bombs were dealt with during the war in Britain, no campaign medals were ever struck for the men who defused them.

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