For his birthday, eight-year-old Oskar receives a clue about a mysterious treasure hunt left to him by his deceased parents. He immediately hires the best detective he knows: The star of the popular TV series "Detective Bruno". Together, the two embark on a turbulent paper chase and discover far more than just the next clue. A heart-warming family adventure to guess along with!

Oskar and Detective Bruno are about to embark on another fascinating journey full of puzzles and surprising twists. This time the adventure of our detective team will be even more captivating, as they will be on the trail of the real treasure of the Baltic Sea!