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.
Thomas Weisgerber
as Jim Leslie
Hans-Peter Minetti
as Bob Harris
Wolf Kaiser
as Colonel Reed
Friederike Aust
as Brenda Reed
Ivan Malré
as Gordon Gray
Armin Mueller-Stahl
as Sowjetischer Arzt
Hans Teuscher
as Sowjetischer Soldat
Hans-Joachim Blochwitz
as Patrick
Jochen Diestelmann
as Bryan
Werner Ilsemann
as Barkeeper
Gerhard Rachold
as Hester
Rolf Schneider
as Sowjetischer Offizier
