Five Bulgarian émigrés return to their country by submarine from the Soviet Union. They have to organize the antifascist resistance.

In the trial against Boris, Lazar is the main witness for the prosecution. The two are the comrades-in-arms. Now they are opponents, because of a conflict concerning a coal conveyor where they work. Lazar is afraid of taking risks. Boris, however, is not afraid of taking responsibility where innovation is at stake. The conflict ceases to be confined to production problems and grows into dispute over commitment to principle and ethics. After harrowing hesitations the main witness Lazar gives evidence in Boris's defense.

A story about the crew of a Bulgarian ship on the way to Lagos.

The kid Kolyo dreams of traveling. One day he meets Bim-Bam who introduces himself as a writer and great traveler. The two build a cabin in a vineyard and live there. They meet different people; start working in the quarry. Time passes. One day someone tells Kolyo that Bim-Bam is no writer. He has stolen the furniture from a local community center. Bim Bam was gone. Kolyo leaves for home, trying to call Bim-Bam with their secret signal.