Trying to return a lost crown, Adderly discovers that he is a dead ringer for the ruler of a small country, who may be the target of assassins.
An undercover operation is jeopardized when all the subjects start getting killed.
Adderly tries to help a friend who has been framed for the murder of a British spy.
Guarding the body of a dead agent, Greenspan becomes a target for foreign spies after inadvertently swallowing microdots that he mistook for aspirin.
Assigned to check parcels at a conference of NATO ministers, Adderly finds that one of them is being blackmailed by a Soviet agent, and also finds time to invent a board game based on his experiences.
Assigned to the domestic support staff at the embassy in Moscow, Adderly tries to find out the real reason why a Russian rocket scientist wants to defect.
Adderly and Greenspan try to stop a terrorist who is trying to poison the city's water supply and has kidnapped Mona.
Greenspan is thrown into trouble when Clack tricks him into escorting a beautiful undercover agent on a dangerous assignment.
Greenspan's new maid turns out to be a fugitive with a secret past, leading Adderly to an employment agency that is a front for an underground railroad system.
Greenspan is happy to be able to visit the land of his ancestors when he and Adderly are sent to Ireland to prevent the kidnapping of a valuable horse owned by an old friend of Clack's.
When Adderly, Mona and Greenspan undertake a seemingly routine assignment as ushers at an international film festival, Adderly ends up faking his own death to keep secrets from being smuggled out of the country.
When a new government committee decides that Greenspan is the mastermind of a ring of foreign spies, Adderly must stop laughing long enough to prove them wrong.
When Adderly and Greenspan are asked to escort the obnoxious sons of diplomats on a camping trip, Adderly becomes suspicious of a visiting Middle Eastern ruler's press agent.
Major Clack is recruited by a former lover for a position in a private security firm, while Adderly tries to keep a visiting diplomat happy - and alive.
Assigned to provide security for a millionaire philanthropist, Adderly discovers the dark deeds of his past as an officer in the Nazi SS.
While they are sorting files together, Adderly tells Mona a tale of one of his adventures in Morocco, and she fantasizes about being his partner in a scenario similar to the movie Casablanca.
On a simple mission to deliver an item to the airport, Mona spots an ISI agent being forced on board a plane, and in no time she's off to Europe in pursuit of enemy agents.
On the way to a vacation in Paris, Adderly has to make a detour to Monte Carlo to verify the identity of a dead hit man.
The death of a former partner leads Adderly from providing security at a parking lot to exchanging a million dollars for a list of KGB agents.
The discovery of secret listening devices at ISI forces Clark to temporarily relocate to Miscellaneous Affairs while Adderly investigates.
Adderly is plagued by nightmares of the torture that resulted in the injury to his hand, fearing that he may have revealed someone else's identity in order to save himself.
Adderly races aginst time to prevent a power-hungry colonel from a Middle East nation from detonating a nuclear weapon with stolen plutonium.
