After a disaster in the mine, Łopot, a technician, protects the perpetrator. He soon faces a moral dilemma.

A small fishing village between the sea and the lake. One day, when all the men went out to catch, a viper bitten Grandpa Filip and little Madzia was severely injured by a misfire. Holidaymakers with a motorboat refuse to help. Filip decides to take the girl to the doctor himself.