The friends and amateur detectives Rico and Oskar experiencing their last adventure together. Here everything is really only one well, because now they live next door to. Ricos mother Tanya and Buhl are together, Oskar is with his father Lars pulled to Rico into the house. But dies as the grumpy Fitzke, the trouble begins. The stone Breeder inherited Rico his beloved stone-collection over which the boy also very pleased - but then he and his buddy note that Rico's favorite stone calf stone was stolen. The task now is to make the thieves apprehended. And because there are on the way to the Baltic Sea, Rico and Oskar must as soon as possible afterwards. Glad Tanja is flown by Buhl in the "snogging holiday" ...

Bingo! Lukas, a twenty-five-year-old law student, is among the chosen few accepted to study under the distinguished Professor Arndt. At the start of the summer semester he switches to Munich University. Lukas is determined to head his class and win the 25,000 valedictorian scholarship – the first step toward a great international career.
Among Lukas’s classmates are smart Alexander and his friends Marco, Anton and lovely Evelyn. Fascinated by their charisma, Lukas dreams of joining the clique. Although Alexander is his major rival in the seminar, Lukas courts his friendship. To complicate matters, he falls head over heels in love with Evelyn, the most desirable woman he’s ever seen.
Finally a dream comes true: The clique accepts him. But the glamorous lure proves treacherous. Unable to keep up with his new friends’ high-society lifestyle, Lukas gets into ever deeper trouble. Concealing his financial problems, he becomes entangled in a web of lies…

Summer vacation. Mika is overjoyed to see Ostwind again. But then she discovers strange wounds on the belly of Ostwind, for which no one has an explanation. Yet this is Kaltenbach verge of bankruptcy! With a heavy heart Mika decides to participate in a variety tournament in which beckons a high prize money. But during training affects Ostwind distracted, often he runs away easily. Mika pursued the black stallion until deep into the forest and is quite surprised: From the thicket a seemingly magical gray mare appears and the two horses dance around lovingly. Suddenly, a strange boy named Milan appears, who says the mare had escaped him. He claimed that he could Help Mika to win the tournament. But is there still time to save Kaltenbach?