Bassie & Adriaan traveled throughout the Netherlands and Belgium for years with their Lachspektakelshow (Laughter Spectacular Show). There, they entertained millions of children with their cheerful songs and fun scenes.

Bassie and Adriaan find themselves abandoned by their own circus because they overslept, and with no tour-schedule in sight or any money they're forced to take other jobs -- losing each one. A malicious 'poltergeist' turns out responsible for their misery.

Bassie and Adriaan have a diamond named after them. Escaped from prison, diamond thieves B1 and B2 attempt to steal it, dressing as Bassie and Adriaan. The actual Bassie and Adriaan are given three days to prove their innocence.

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.

Bassie finds a mysterious stone while on holiday in Greece. Three crooks are very interested in the secret the stone holds.

Bassie and Adriaan take a well-earned holiday but find themselves chased by two diamond thieves, referred to as B1 and B2. The crooks mistake Bassie for the go-between who came to collect the key to the vault of the stolen diamonds.

Bassie and Adriaan teach children a number of traffic rules in a playful way. They show them what to look out for when crossing the road and that bicycles also play a very important role in traffic. As a bonus, there is the exciting adventure "The missing TROS star."