En route to a party they are not keen on attending, the Famous Five are almost relieved when Aunt Fanny's car breaks down, stranding them in a small town. To pass the time, they visit the local natural history museum, where some newly-discovered dinosaur bones are being unveiled. Here they meet Marty, who tells them that his father, long dead, supposedly found a complete dinosaur skeleton and made a map of its whereabouts. Unfortunately the map has been stolen. Unable to let a good mystery go unsolved, George, Julian, Dick, Anne and Timmy, join a guided hike through the Valley of Dinosaurs. But their fact-finding mission soon turns into a race to find the dinosaur when they suspect that the thief is one of the group.
Allegra Tinnefeld
as George
Marinus Hohmann
as Julian
Ron Antony Renzenbrink
as Dick
Amelie Lammers
as Anne
Jacob Matschenz
as Marty Bach
Peter Prager
as Carl Herzog
Melika Foroutan
as Barbara Herzog
Dirk Borchardt
as Harald 'Becky' Beck / Hans
Jürgen Tarrach
as Gottfried Meyer
Dagmar Sachse
as Christa Kleinhans
Manuel Cortez
as Pedro Mendes
Milan Peschel
as Kurt Weller
