When the temperature in the Radio D office becomes unbearable, Paula and Philipp are glad to get an assignment that takes them to the coast, where a shark has been spotted in the port basin. Paula, Philipp and Ayhan don't have it easy. The heat in the office is insufferable and they don't even have a fan. Paula wishes she could go to the sea and, fortunately, Compu is able to make this possible. The journalists have to go to Hamburg because a shark has allegedly been sighted at the port. Due to the crowd of people who have already turned out to catch a glimpse of the big fish, Paula and Philipp can't get through. Things also get complicated for the professor, who is tackling the accusative ending of masculine articles. The negative "kein" follows the same pattern of endings.