The questing spirit has dominated the life of Dr. Barnes Neville Wallis-a great engineer who defied those who said 'It won't work'. This film shows what his ideas and tenacity have achieved and how a four shilling-a-week shipyard apprentice became one of our great inventors. Dr. Wallis talks to Christopher Brasher about his inventions and shows:

The dam-busting bouncing bomb
"I refused to be beaten"

The swing wing plane rejected by Whitehall
"The whole joy of life is in battle - not winning"

The Wellington bomber
"All opposition is good for you"

The Grand Slam Bomb
"In a way, the less you know the better you are qualified to introduce new ideas"

The R.100 airship
"I got the job by low cunning. Getting a secondhand drawing-board and setting it up in my bed-sitting room"

The plane to fly to Australia in an hour and a half
"Why not?... Why Not!"

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