The university student Bobchev joins a youth brigade. The commander's council entrust Bobchev with a literacy course for members of the brigade. Velizarov and Monkata arrive in the camp to carry out sabotage. They place explosives on the dam, and attempt to win Bobchev over by means of intrigue. There is a storm: the camp is put on the alert. Everyone joins the rescue work at the dam. After a long struggle with Velizarov, Bobchev cuts the burning fuse of the explosive. The dam does not yield to the pressure of the flood. Everymen sing in Jubilation.
Lubomir Kabakchiyev
as Ivan Bobchev
Apostol Karamitev
as Velizarov
Ivan Stefanov
as Naydenov
Zheni Bozhinova
as Nadya
Petar Dimitrov
as Inzhener Tzachev
Георги Георгиев - Гец
as Shlosera
Ivan Tonev
as Stefanov
Димитър Бобчев
as Krasimirov
Yordan Matev
as Monkata
Boyan Petrov
as Marin Bobchev
Ivanka Sladkarova
as Elena Bobcheva
Tinka Angelova
as Maykata na partizanina
