The young Gregor lives together with his sister Maria and his father in Sankt Peter in Baden-Württemberg. The father has a farm there and Gregor is supposed to take over his business later. But he has other dreams because he wants to open a gas station on the main road. In order to realize this dream, he relies on the financial support of his father, who, under certain conditions, even gets involved and respects the wish of his only son. But the father's condition puts the siblings Gregor and Maria to the test.