It's the story of two war orphans, a German girl named Lottie and a Slovene boy named Marko, who escape from a town which has been bombed, in search of "a valley where there is no war", as the four-year old girl was told by her grandmother. Marko who is a few years older thinks that this is probably the place where he used to go for holidays at his uncle's and so they bravely set up, retreating from the German soldiers. Jim,a black American pilot who parachuted from a plane that had been shut down joins them at the river. They continue the journey together and finally reach the place of peace the boy knows. However, "the valley of peace" is attacked by the Germans and the pilot is killed. The children run away in despair and continue their search.