Favorite gaming trio is back! This time Waldek, Staszek and Delfina will experience a summer full of adventures in the Tatra Mountains. During the trip, Waldek accidentally learns that his father lives in the area, about whom he only heard from his mother that he abandoned their family a long time ago. The boy decides to find him at all costs and ask him personally about the reasons for this decision. Together with Staszek, under the cover of darkness, they set out to search. The dangers that await them on the mountain trail are nothing compared to the task that Delfina receives. A creative teenager must hide the truth about the boys' disappearance from her unaware aunt, Waldek's mother, and... her new partner. What disruptions will this secret mission bring to the lives of all the heroes? Will Waldek receive answers to the questions that torment him and understand his father's actions?