Three friends from a small town - doctor František, director of the local museum Oskar and P.E. teacher Robert - face an unexpected task. They have only two weeks to save their children's traditional summer camp, which was unexpectedly destroyed by a storm. The meadow under the castle Tramberk is their last hope. However, the castellan there is the quirky Evžen, who is the happiest when no tourists come to the castle. However, Department of Conservation gives Evžen an ultimatum. Either he reaches three thousand visitors in two weeks, or they will start looking for a new castellan. Evžen decides to allow the camp, but in return they have to help him get new visitors.