Arriving in Vienna, Austria for a visit with friends Steve gets a taste of Cold War intrigue. Canyon learns that his little friend Lisa and Mrs. Czerny have been kidnapped by the Reds. The kidnappers will release her if her father Karolyi, a Hungarian underground leader, is turned over to them.

When a Big Thunder war bride is slain Steve and Police Chief Hagedorn discover a cruel blackmail plot against the wives who have relatives behind the Iron Curtain. Col. Canyon enlists the services of another war bride (Narda Onyx) to try and smoke out the killer.

An East Indian potentate visits the Big Thunder AFB with his wife and retinue. When Major Williston's friend (a visiting newspaperwoman assigned to the story) disappears, the Air Force Officers discover a plot to assassinate the visiting dignitary.

A B-47 bomber on a routine flight loses contact with it's base. When the Air Force realizes that the plane is out of control and heading for Russia, they Send Steve Canyon up to investigate and try to stop a potential international incident.

On a practice bombing mission, Canyon has difficulties and is forced to drop a small bomb on a disposal area. The bomb doesn't explode and is picked up by some boys who saw it drop, but don't know the danger they are in.

There is a question concerning a young lieutenant named Muller at Big Thunder Air Force Base who must choose between loyalty to his country and to his father, who is suspected of being an infamous Nazi war criminal.

Major Willie Williston is trapped inside his wrecked airplane. Steve Canyon and his men must free the major from the burning fuselage before the jet explodes.

Steve steps In when Airman Pete Randall's clashes with a sadistic Sergeant imperils his appointment to the Air Force Academy.

Capt. Dennis Parker flies his F-104 to Big Thunder Air Force Base, arriving in a state of shock and talking about the Korean War. Canyon and flight surgeon Major Richmond try to find out what caused Parker to go into shock.

Canyon investigates when a security officer from the pentagon arrives at Big Thunder AFB to inform him that one of six Chinese jet fighter pilot trainees is a Red Chinese saboteur.