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A series of murders in Michigan lead an American secret agent to Amsterdam, where he uncovers a plot to imperil the world with a potent new drug.

A series of incidents involving aircrafts belonging to NATO nations indicates a systematic sabotage.

An electronic ray that can counter any aerial attacks has just been invented by Professor Goodwin, but before he can put in good hands, he is kidnapped by a criminal organization, that starts an international bid for him and his invention among the rogue countries of the world. The CIA sends Agent Sigma 3 to find the Professor before the transaction takes place. His mission takes him from Rome to Tangiers, and to Barcelona.

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.

Agent Lemmy Logan is investigating the case of a missing NASA scientist and discovers that an ex nazi is developing a new super weapon.

A former American spy is ordered by the secret services of the UN to investigate a powerful secret organization that has built a nuclear missile capable of destroying any city in the world if their demands are not met.

An American CIA agent must find the whereabouts of valuable microfilm that was smuggled over by two Russian scientists who had been hoping to defect.

Mike Gold is trying to nail a terrorist spy ring who he believes killed his partner. His investigation takes him to Beirut where he is ensnared by a faux-damsel in distress called Jane.

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

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.