Si muore solo una volta

A secret agent is assigned ot rescue the daughter of a deceased East German scienist, who discovered a valuable formula.

When $300,000,000 in diamonds are stolen from a fiery plane wreck the British Government become concerned that it might be part of a plot to undermine the value of sterling. They hire professional photographer, amateur lady-killer, and undercover agent Steve Norton to investigate.

When "The Third Eye" - a criminal organization made up of the world's most vicious killers - kidnaps nuclear scientist Professor Von Kraft, his secret formula for a new atomic weapon that can destroy all human life falls into their evil hands. Making things a tad difficult, however, is that the weapon is located deep beneath the ocean. Nevertheless, the Third Eye plans on experimenting with the device in little more than a week. However, the Secret Service has other ideas and asks "Jerry," their super computer, to locate the best man to stop them: Mark Andrews (RODD DANA), a special forces secret agent who infiltrates the criminal gang under the cover of a robber who just happens to be an expert underwater diver! He also wastes no time romancing all manner of shapely women in the tightest clothes imaginable (when they're wearing more than a modestly placed bed sheet) especially JANINE REYNAUD, the bisexual leader of The Third Eye, who sports a wild wardrobe of very revealing outfits.

Secret agent Perry Grant is called in to investigate a strange case which involves counterfeit money, industrial espionage, and a fashion company that may be functioning as a front for a secret criminal organization.

A secret agent travels to Singapore in search of a secret formula. Just about everyone he trusts ends up betraying him.

F.B.I. agents David Blair and Thelma Avery are assigned to search for Professor Weiss, who had mysteriously disappeared after discovering an antidote for atomic radiation.

CIA agent Jeff Larson is sent to investigate suspicious activities at a U.S. base located in southern Spain. He discovers the base is being heavily monitored by the KGB via hidden cameras and moles within the base, and he must find a way to ferret the traitors out whilst avoiding discovery of his investigation.

Franco and Ciccio are two simple-minded Italian guys whom are mistaken by KGB spies by government agents from their government and other foreign governments.

An international gang of gun dealers in the USA has stolen the prototype of a laser rifle from a German laboratory. The FBI agent Cormoran is being sent to recover the state-of-the-art and highly effective weapon. But there are some indications that he has defected to the enemy. Since agent 007 is currently on another mission, the chief of intelligence has to fall back on his second best man, the previous number 006. And so the German secret agent John Krim is given the assignment to get the rifle back, find evidence of Cormoran’s treachery and finally eliminate the colleague. Krim’s journey takes him across the ocean, and there he experiences incredible adventures in San Francisco, Los Angeles and Las Vegas. Two women get in his way, and Krim can’t be sure whether he can trust them or whether they too are working for the other side.

A contemporary gang of international thieves has found the multi-billion counterfeit money stash that the Nazis produced. They need to dump it all across the world at once. A lower-level dame is spotted distributing some of it, and this sets American agent Bob Dixon (Stephen Forsyth) onto the trail.

Lady Lorraine Lister, a financer of expensive experiments, has discovered a way to obtain pure diamonds by the means of a radiation device. She hires five renowned scientists to participate in additional experiments regarding this new contrivance. However, it soon happens that the device is stolen, and the scientists mysteriously disappear! Agent Dick Smart is called in by the CIA to track down the scientists and recover the device. With the help of incredible gadgets and lots of bravado, he manages to locate the source of an underground operation in Rio De Janeiro: an operation headed by a mysterious man with a speaking device fastened to his throat.

A Chinese scientist takes a plane to the United States of America to warn that China has the atomic bomb. On the way, however, the plane is intercepted by the Secret Service and shot down, falling over Italy. The scientist, who was saved, is later taken to his destination by a secret agent, but with much difficulty.

Kirk Warren, a former spy, is to be executed because he tried to steal a million dollars. But he is saved by Colonel Smithson because Sir Wilcox has prepared a mission for him. Warren has to steal a secret formula in Switzerland and try to expose the real identity of Mr. X. Kirk leaves London and Alina, his girl, together with three clumsy friends to accomplish his not so secret mission. But Kirk's great love is always a million dollars and not a secret formula.

A master criminal is pursued by inspector Milton

Jonas Wilde, a British secret agent licensed to kill, wants to resign from his murderous work, but his superiors pressure him into taking on a new assignment-the assassination of a defecting Soviet scientist. In the course of the dangerous mission, he discovers a mole has infiltrated British intelligence.

A government agent tries to prevent foreign spies from obtaining a scientist's formula for a solid-rocket-fuel.

Klima, Deputy Minister of Industry of the Republic of Alabanda, has come to Japan to purchase materials for the water dam construction. Kitami, who called himself a salesman and met with Klima, acts as his bodyguard. However, Kitami learns that a large number of industrial cylinders unrelated to dam construction have been purchased, and Klima secretly confined her secretary, a former army colonel, and threatened to produce poisonous gas. Klima packed the gas in a cylinder and sent it to Alabanda in an attempt to cause a civil war between the government and the tribes. Around that time, Klima secretly investigated Kitami's identity and learned that he was a secret agent.

FBI agent Brad joins Tony and Nick, the self styled Supermen who battle crime wearing bullet-proof super-suits. They are on a case involving radioactive counterfeit money and people who can be broken down into precious jewels.

Shot on location in Egypt, the story unfurls like an Italian Giallo as a group of people meet under strange circumstances, and one by one they are murdered. Gold is missing so you suspect a thief is trying to cover up his crime but that might be too obvious.

Professor Freeman is an important English scientist that is investigating a method to treat cancer. His daughter is killed in the swimming pool of a hotel in Beirut. The case is confidential so that the mission is entrusted to the Special Agent Mikel Brown.