Something unbelievable happens during a live television broadcast! Minister Kollmann is speaking at a rally of protesting farmers when he is suddenly shot dead. Television director Basler, head of a local TV station, sees the assassination as the opportunity of a lifetime.

Coconut and his friend Oscar are outsiders on Dragon Island. Coconut is supposed to be a flying dragon but he can't fly and Oscar, a carnivore by nature, is a vegetarian bychoice. Together with the porcupine Matilda they go on fabulous adventures and meet dragons in all shapes and sizes.

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.

After the brutal robbery and murder of a wealthy senator, his daughter Nathalie turns to Munich lawyer Sina Teufel to settle the inheritance. Nathalie is to receive the majority of the immense fortune, while her homosexual brother Dominik is only to receive the compulsory portion. Sina Teufel wants to find out what's behind this and discovers a dark family secret.