: Each episode typically involves Pumuckl playing a prank or getting into trouble, followed by Master Eder teaching him life lessons about honesty, respect, and tolerance.

: Pumuckl is invisible to everyone except Master Eder, leading to humorous situations where Eder appears to be talking to thin air while objects move on their own.

: The series begins when Pumuckl gets stuck to a glue pot in Master Eder's Munich workshop. According to "kobold law," he must become visible to the person who sees him first and stay with them forever.