German adventurers discover the cultural and natural riches of Yugoslavia regions, their own carelessness almost pays for their fascination with their lives, but the intellect still wins in mastering nature, which offers the winners resources for a better quality of life. All this is framed by a love story. It is a meeting of two cultures and two views of the world.

On the coast of Yugoslavia lives fisherman Ivo Kralj, his wife Marie, son Vuk, and Ivo's mother in one happy home. Marie, who loves her husband and always looks forward to his return from sea, attracts Nikola, with whom Ivo, out of jealousy, has a scuffle at a dance. After the outbreak of World War I Ivo is mobilized. He ends up in a P.O.W. camp where he is subjected to hard labour. His family the...