The three crooks lure Bassie and Adriaan to Curacao to take care of them once and for all. This doesn't go as planned. Back in The Netherlands Bassie wins a trip to the USA in a TV quiz and takes Adriaan on a tour of the whole country. What they don't know is that de Baron, B100 and Handige Harry are on their trail.
An unknown man asks Bassie and Adriaan to track down packages throughout Europe. To find the packages they have to solve all kinds of strange riddles. On their quest for the packages they travel through the whole of Europe and discover beautiful and interesting places. What they don't know is that De Baron, Handige Harry and B100 are trying to lure them into an ambush. Thus begins an exciting but beautiful adventure!
The Baron and his cronies steal a precious crown and hide in a secret room of an abandoned castle. With the help of their tiny robot Robin, Bassie and Adriaan set out to find the crown and return it to the museum.
Professor Archibald Chagrijn exposes the world to his blubbering gas, which makes people sad and causes them to cry. Bassie proves immune to the blubbering gas -- as he has had an overdose of laughing gas. The professor is hiding on the Canary Islands, but Bassie and Adriaan manage to track him down.
Joep is a piano tuner, and not the best in his profession. His fiancee ends their relationship and Joep wants to end his life. Then he meets Dorien. They fall in love, but they must deal with some issues from the past--like an ex-lover and a hitman.
