Oskar, Patsy, and their famous friend Detective Bruno are about to embark on another fascinating journey full of puzzles and unexpected twists. During their summer holiday, they stumble upon a secret map that leads to the legendary treasure of the Baltic Sea. But when Patsy mysteriously disappears, the stakes get higher. This captivating adventure will take the detective team on a heartwarming journey filled with unforgettable moments, surprising discoveries, and lots of laughs along the way.