Treasure of Ostend

A little boy loses his dog and his friends set out to help him find it. The search results in a number of amusing adventures, during which the children are under the protection of two worldly and comic detectives, well known to the youngsters of Europe from a famous series of children's books. Concurrently, we also witness the adventures of the lost dog, which, during its search for its master, forms a deep friendship with a racehorse.