Three boys and a girl went to the mountains in search of a dinosaur. A lot of "scary things" came across on their way. Eventually, mysterious footprints led them to adult loafers hoping to find treasure at the bottom of the lake.

The young music teacher Gulnora Rakhimovna, coming to school, initially encounters indifference to her subject both from schoolchildren and work colleagues. But with his desire to introduce children to the wonderful world of music, he wins the love and recognition of students and respect from other teachers.