Piggeldy asks his big brother Frederick about various words and topics, each time leading them on an adventure. Although Frederick may be annoyed by his little brother, he generally manages to teach him something, even if it sometimes occurs incidentally.
The subject today is "holes." In this episode, the brothers P & F stumble upon a pond which Frederick speaks about. As always he runs into trouble with counterexamples & contradictions. In the end, Piggeldy saves the day with a philosophical response about holes being defined by the context in which they appear. Viel Spaß beim Lernen!