Sam and Star had long been friends. Sam's father is a detective and thus learn to know Ortwin. Ortwin's the rare parrot is in fact stolen. Ortwin's father enlists the help of Max, but Max is kidnapped during their quest by a gang of criminals. The kids put a chase with a speedboat and end up on a mysterious island fortress.

My Dad's a Detective

When detective Max is hired by fourteen-year-old Mara to find her missing mother, his son, Sam, and Sam's friend Ortwin start to worry. Max doesn't realize that Mara's a witch, and Sterre, the girl both boys fancy, is falling under her spell. As Sam and Ortwin do their best to expose Mara, they find themselves in a mysterious grove where strange rituals take place, things disappear, and no one is safe.

Mijn vader is een detective: De wet van 3

This is the third movie from the "Mijn Vader is een Detective" film series.