Watch Člny proti prúdu (1982) Official Trailer

War tests human character severely, because the slightest suspicion of failure is hard to live with. A resistance worker who finds himself in such a situation would rather sacrifice his own life in order to dispel once and for all the doubts of those around him. Thus an agitprop was created about the moral maturity of those who consciously and from the right class positions fought against Nazism.