Three friends from a small town, doctor František, museum director Oskar and sports teacher Robert, spend a fortnight trying to save a traditional summer camp for their children that is destroyed by a storm, and their last hope is the meadow under Tramberk Castle. Castellan Eugen, who shuns tourists, allows the camp to go ahead if his friends help him to increase the number of participants, which is threatened by an ultimatum from Kudláková of the Monument Protection Office.