Produced by Grundy Motion Pictures and Revcom Television

Devised by: Roger Mirams
Producers: Roger Mirams, Ian Holmes, Robert Guillemot
Writers: Roger Mirams, Rob Guillemot, Roger Dunne, Ken Saunders, Rick Maier, Bruce Stewart, Betty Quinn
Directors: Howard Rubie, Russell Webb

Aired: 1986 (Nine)

Professor Poopsnagle has made a sensational invention that eliminates once and for all the problem of air pollution. But before he can present his discovery to the world, he disappears. The children of the "Secret Valley" obtain an encrypted reference to the whereabouts of the scientist and decide to go and look. Help they receive from professor's colleague, Doctor Garcia, and set off in a hot air balloon in the shape of a red bus. (39 x 30min)
Justine ClarkeCarmen
Kelan AngelMatt
Philip HenvillePeter
Marc GrayMike
Rory BromheadJamie
Tonya WrightJoanne
Mark Kazuehiro PearceSparkes
Melissa KounnasRobyn
José María CaffarelDoctor García
Bill ConnWillie Dingle
Ric HuttonCount Sator
Ron BlanchardMurk
Gerry DugganProfessor Poopsnagle
There's a great big bus way up in the sky
And everyone said it would never never fly
With a poop poop chugga chugga bing a bang bing
This is a song that we always sing

Boom boom chugga chugga boom boom chugga chugga
Boom boom chugga chugga boom boom
Boom boom chugga chugga boom boom chugga chugga
Boom boom chugga chugga chug boom boom

Kookaburra, kangaroo, wallabies and snakes
Open the steam valve let go the brakes
Chuggie chuggie clatter clatter chop chop chop
Off we go with our funny old bus

Boom boom chugga chugga boom boom chugga chugga
Boom boom chugga chugga boom boom
Boom boom chugga chugga boom boom chugga chugga
Boom boom chugga chugga chug boom boom

Over the hill and over the dale
We're on a big quest that must not fail
We're finding a way to make the air clean
And it's all to do with very hot steam

Boom boom chugga chugga boom boom chugga chugga
Boom boom chugga chugga boom boom
Boom boom chugga chugga boom boom chugga chugga
Boom boom chugga chugga chug boom boom
Boom boom chugga chugga chug boom boom

- composed by Bob Young
- lyrics by Roger Mirams

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