In 1912, the Austrian secret service identifies Marcella Galdi, an Italian noblewoman who is visiting Vienna, as an Italian spy. To avoid diplomatic confusions, she is kidnapped while dancing with the Austrian General Staff officer Michael von Hombergk at a ball at the famous hotel Sacher in Vienna, and sent back to Italy. Shortly afterwards, a secret plan of an Austrian fortress appears in Hombergks office desk, and as he himself is unable to explain this, the secret service urges him to commit suicide, but instead he manages to escape from Vienna.
This is not a Bulldog Drummond picture despite the title playing off Jack Buchanan and his previous association with the character. Here he plays the role of Test Pilot 'Bulldog' Bill Watson. His friend Derek Sinclair (Sebastian Shaw) is convinced that the new man in his love's life is collaborating with the Nazis by sabotaging an armaments plant.
The story commences in 1939. Alex Schottland (Jack Hawkins), a general in the German Army, is actually a British agent who was planted in Germany toward the end of the First World War. He is growing weary of being a spy, but is urged to continue by his friend and fellow British agent, Cornaz (Felix Aylmer), who is posing as a watchmaker.
Stanley Baker stars as a British spy who investigates the past of Lydia Constantine (Signe Hasso), the widow of secret agent Constantine (Kurt Kasznar). Lydia is suspected of selling cold war secrets to the Communists. To ascertain the truth, it is necessary to "rebuild" agent Constantine and send his living counterpart behind the Iron Curtain.
Duncan Jax, played by Ian Hunter, must stop neo-Nazis from destroying communication satellites and awakening Hitler from a cryogenic sleep. Jax assembles a band of the dirtiest fighters in the world to do it.
A young wife is becoming very distraught over the fact that her husband, a secret service "spy" for Britain, has changed his mind about transferring away so that he can spend more time with her and their young son. He has grown cold and distant towards her; she thinks it's because of the secretiveness of his work. Meanwhile, a U.S spy comes to Britain and is induced to help the British "team" with an undercover spy ring...
Colonel Duncan Grant (Brian Aherne) is a British officer during World War I. When the British high command get wind of a German plan, titled The W Plan, from the lips of a dying German officer, Major Ulrich Muller (George Merritt), they send Grant behind enemy lines to learn the details. After successfully being dropped by airplane near the German town of Essen, where he makes his way to home of the dead German who was responsible for the plan. Grant is chosen because he speaks fluent German, having spent a significant amount of time in Germany prior to outbreak of hostilities. While in Essen, he runs into an old girlfriend, Rose Hartmann (Madeleine Carroll). When he and Rose go to a nearby café, he is approached by German officers and asked for his papers. While he has the documents taken from Muller, the Germans become suspicious, and Grant has to make a quick getaway. Unfortunately, the plane he is supposed to meet with to make his escape is shot down, after which Grant is arrested for desertion.
On a mission in Mexico, unofficially ordered by the previous M, James Bond kills two men arranging to blow up a stadium; in doing so the building they are in explodes and collapses. Bond gives chase to Marco Sciarra, who survived the blast; Sciarra boards a helicopter to escape. Bond follows and in the ensuing struggle he throws both Sciarra and the pilot out of the helicopter, stealing Sciarra's octopus ring as he does so. On his return to London Bond is indefinitely taken off field duty by the current M, who is in the midst of a power struggle with C, the head of the Joint Intelligence Service, which consists of the recently merged MI5 and MI6. C also wants to create the "Nine Eyes" intelligence co-operation agreement between nine countries, and close down the '00' section in the process.
Bob Sharkey (James Cagney) is an instructor of the 77th group of espionage agent candidates to be trained in the United States to infiltrate Nazi-occupied Europe. He is alerted that one of the students is a German agent and told to identify him or her. Sharkey is able to determine that the enemy agent is "Bill O'Connell" (Richard Conte), who performs too well when he succeeds in a field problem designed to cause the novices to make mistakes. Sharkey's boss, Charles Gibson (Walter Abel), confirms that O'Connell is really Wilhelm Kuncel, one of Germany's top agents but tells Sharkey to pass him, as they know Kuncel's mission is to determine the date and location of the planned Allied invasion of Europe. They intend to provide Kuncel with false information to pass along to his superiors.
It is 1972. An abandoned Mexican prison sits alone in the dusty Chihuahua desert. KGB mole Nikolai Dzerzhinsky waits for his contact from the Washington Post. Dzerzhinsky holds explosive evidence against the CIA; information he will trade for asylum in the United States. Special Agent Robert Harper must obtain this evidence and kill Dzerzhinsky or risk the end of his CIA career. As the two men hunt each other, they discover that the sins from their past destined them for this deadly confrontation.
Dr. Whitaker has disappeared after working hard on an innovation which could give either the West or the East an edge in the Cold War. Lemmy Caution, although currently otherwise busy, is assigned to return the scientist.