The magnificent cow Senta has escaped from an LPG. Matuschek, a single farmer, joins the search. However, the valuable animal is not found and is believed to have strayed across the border into Poland. Meanwhile, Senta is in Matuschek's barn. His maid Mathilde and neighbor Dattelmann have captured her and brought her there. Matuschek conceals a letter to Poland because of the supposedly border-crossing cow and is embarrassed when the cattle farmer Franze Flohr discovers the cow in his barn. Nevertheless, Matuschek and Franze become a couple who also become closer to the LPG.

Captain Jim Leslie, a US Air Force pilot, is transferred to a remote Alaskan base not far from the Soviet border. Here he meets his old friend Harris again and falls in love with Brenda, the commander's daughter. He then comes into conflict with her fiancé, Senator Gordon Gray. At his instigation, he is sent on a dangerous mission with Harris and the navigator Hester: During a storm, the buoys deployed to locate Soviet submarines must be checked. During the emergency landing on an ice floe, Harris suffers a life-threatening injury. They are in Soviet territory, but in view of the situation Jim disregards the radio ban and sends a distress signal. A Soviet submarine appears, Harris is operated on and they are helped to get the plane ready for take-off. Arriving at the base, Jim is arrested. Brenda turns her back on him.

1956 film by Martin Hellberg

Ferdinand is an army major and son of President von Walter, while Luise Miller is the daughter of a middle-class musician. They fall in love with each other, but both their fathers urge them to end the affair.