Topper thinks summer vacation is boring. He misses his father who is sailing the seven seas. He can’t figure out Sille who’s cute. And his best friend, Viggo, always has to help out his punctilious dad, Mr Lion, in the café on the first floor of the red house where Topper lives on the top floor with his mother. One day, Topper finds a magic pencil and when he draws a rhino on the wall, the drawing comes to life! While Topper and Viggo try to keep the rhino, which they name Otto, well fed with black bread and raspberry soda before it devours all the furniture, Mr Lion pleads with the local authorities to come and remove the stomping pachyderm.

Marco the Monkey works as a beach officer. But he spends most of his time trying to win the heart of the beautiful Lulu. He is just about to succeed, when Marco’s rival, Carlo, builds a gigantic monkey-shaped casino right on Marco’s beach. Lulu is fascinated by the charming Carlo. Jealously Marco starts an undercover investigation of Carlo’s strange casino. Soon he discovers the truth. Carlo will take over the island and force Lulu to marry him! When Marco tries to arrest Carlo a problem rises. Literally from the ground. Because Carlo’s Casino is a giant robot.

The 12-year-old Oliver discovers that his grandfather used to be a monster hunter and is keeping a shadow monster locked up in his secret cellar. When the shadow monster accidentally escapes, Oliver and his younger brother Lasse have to follow their grandfather’s instructions and enlist their friends to catch the monster and bring it back – before it is too late! »Monster Busters« is based on an idea of the universe in the children’s book series by Jacob Weinreich.