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.
| Actor | Role |
|---|---|
 Bas van ToorBassie | Bassie |
 Aad van ToorAdriaan | Adriaan |
| WWil SibbeleeB1 | B1 |
| HHarry DikmansB2 | B2 |
| PPaul MeijerBB | BB |