De Avonturen van Okkie Trooy plot
Okkie Trooy is an inventor and actually his only invention is a briefcase which, when he opens it himself, is full of currant dumplings, but when someone else opens the briefcase it is empty. Okkie Trooy lives in the village of Kukelton together with his assistant Nono and housekeeper Rozemarijntje. One day, he is mysteriously flashed to the planet Fabelonia along with Nono. The only one who can help them return to Kukelton is the Mysterious Ips. In search of the Mysterious Ips, Okkie and Nono make many wanderings, encountering special Fabelonians and experiencing exciting adventures.