Underground plot
"The World's Secret Battlefront!"
Kurt Franken is an easily influenced young European. He is very impressed with the aims and results of National Socialism. Kurt's brother Eric is just the opposite and is on the side of the Resistance. Eric works as an announcer at an underground radio station of this Resistance. Kurt is initially very scornful of Eric's activities, but soon learns that Adolf Hitler is not the saint he believed in, especially after some of his closest friends are liquidated by the Gestapo. Kurt therefore joins his brother, but soon finds himself in mortal danger.