Bassie & Adriaan: The Secret of the Key (1978)

First Air Date: 1978-10-09
Last Air Date: 1979-06-30
Total Seasons: 1
Total Episodes: 11
Creator: Bas van Toor, Aad van Toor

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.