The story of a young German boy and his father who befriend a Jewish family during WWII.

Ten-year-old Ole is full of mischief. He attempts to fly and is hospitalized with a broken leg. When he sees a Sherlock Holmes movie on TV, however, he forgets about the pains and comes up with a new plan. Disguised as Sherlock Holmes and Dr. Watson, he and his friend Andreas start searching for criminals. Soon, the two boys detect their first case. On the street they meet a man wearing a stuck-on beard. The hobby detectives find this very suspicious and decide to follow him.

The little African girl Asina is eagerly waiting for her new friend Karli. Karli is a young sailor from Rostock who has promised her a gift on his next arrival in Coccatuttibana. Karli keeps his promise and smuggles a stowaway onboard the “MS Wismar”. Kasimir, a snowman, finds shelter in a cooling chamber. Although the journey turns out to be turbulent, Karli and Kasimir manage to arrive in Africa in good health.