In 1989, Jenny Ecker, an 18-year-old daughter of an entrepreneur, flees from Hildesheim to the east - out of love. The teenager has fallen hopelessly in love with an East Berliner. Jenny’s parents are foaming from wrath and offer a reward: One-hundred thousand, later even a million, deutschmarks for whoever brings them their daughter back. The prospect of so much money gets east and west into quite a disarray – and in the end, the Wall really falls.

The scatterbrained archivist of Cologne Cathedral is sent to Africa to retrieve the largest diamond in the world, on which the cathedral once rested and whose absence is now causing the foundations of the building to sink. In his wake, shady characters appear who are also after the precious stone. But there are also helpers who are well-disposed towards the adventurer against his will.

Marc owes a criminal a quarter of a million euros. So it's just as well that there's an illegal car rally across Germany to win exactly that amount. Inconveniently, he is now supposed to look after his eight-year-old daughter.