Synopsis and details
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?
Seasons and episodes
The Great Swedish Adventure
8 Episodes · 2011-01-18
Nordic Countries
10 Episodes · 2012-01-08
Europe
8 Episodes · 2017-02-02
The World
12 Episodes · 2023-06-12
Cast
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