While on their way to buy Clown Bassie's (Bas van Toor) new pet bird a cage their car gets a puncture. To fix this acrobat Adriaan (Aad van Toor) needs a jack, but Bassie left that in their caravan. To get the wheel off Adriaan needs a wrench. Bassie rings a doorbell to find one, but instead gets a key. And with that key the adventure begins.
