Holger Nilsson is forced on a raging treasure hunt to find the seven keys to his world-famous relative Mary Diana Graaf's mythical laboratory. To help him, he has the inventor Mortensen and Mary Diana's GPS computer with pre-recorded riddles and clues written in verse. But what kind of mysterious and malevolent figure lurks in the background?
Runtime: 26:14 minutes
Quality: HD
First air date: Jan 18, 2011
Last air date: Jun 26, 2023
Episode: 31 Episode
Season: 4 Season
IMDb: 1
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