The Viennese detective children Biggi, Patrick and Luke find a key in dragon form, and their curiosity is aroused. They realize that the sinister Lady Q is interested in opening the legendary moon palace and find the elixir which is believed that promises eternal youth. The Tigers must prevent that Lady Q enters into possession of the priceless liquid.

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Constantin FilmNeue Deutsche FilmgesellschaftB.A. FilmproduktionORF

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