Chavdar gets a degree in geology. He wishes to pursue a scientific carrier, but his father decides that his son should practice his profession in a rich of mineral Rhodopa Mountain. Chavdar meets geologists and locals who love their profession and the region. Here he finds true love with Vanya, a girl born and raised in the mountain. She is a part time geologist student and dreams of finding new ore sources. Chavdar has to leave, and he bids farewell to his friends, certain that one day he will come back to continue his search.
Boev, an enthusiastic form master, is trying hard to establish rapport with his final-year students. His frankness, buoyancy and good nature soon make him a universal favorite. The only one who does not approve of him is headmaster who loves his job, but is not aware of how dated his own views are and cannot understand the young teacher. Apart from this, Boev comes in into particularly sharp conflict with his colleague and childhood chum Kiril who is consumed by jealousy and the ambition to get promoted quickly.
