Le spie uccidono in silenzio

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.

An officially "dead" cop is trained to become an extraordinary unique assassin in service of the U.S. President.

Vine finds himself on the trail of a missing Russian spy and soon finds himself involved in a bonkers plot involving Albanians and the Chinese.

A veteran US Secret Service agent must thwart the covert conspiracy of an enemy spy network that threatens the world's safety.

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

An airplane crashes in Spain. The Russian as well as the Chinese government take care of the events because on board there was a "black box" containing precious and dangerous devices for the whole world.

A US Secret Service agent must go to Hong Kong because of the disappearance of some important documents that carried her former partner in the Korean War. These documents, if they fell into enemy hands, could be very dangerous and cause many more deaths.

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.

A lady killer tracked by the police, takes refuge at a psychiatrist's home, and the doctor tells him three stories, to convince him that crime does not pay

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.

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.