Lockwood goes undercover to investigate the disappearance of a State Department official. Posing as a U.N official he discovers a blackmail ring that preys on officials with gambling addictions in order to gain classified government papers.
Nick Bianco searches for a missing Probe agent who was investigating a counterfeit ring that has been printing flawless one hundred dollar bills. He must find the source of the counterfeit bills before it undermines the economy.
A U.S. mission to the moon has brought back a moon rock consisting of what's believed to be raw diamonds. World Securities had been entrusted with the moon rock but it has been lost. Lockwood is dispatched to get it back. But the mission won't be easy. Among other things, Lockwood will need to charter a 747.
Lockwood investigates the location of a lost gold mine for Eurasian Jade & Metal. Along the way he finds deceit, fraud, and a foreign power that wants the mine for its uranium deposits rather than its gold.
Bianco investigates the disappearance of an old flame. But Bianco soon discovers that it is a ruse by her and her current fiancé to capture him and transport him to an island in the Mediterranean where he must fight for his life.
C.R. Grover has 4 days to locate a missing heiress before a trust in which she is to inherit will revert back to her father. His mission is complicated by family members who are out to kill the heiress to gain control of the family fortune.
Agent Grover must find a blackmailer who has gained access to secret and sensitive account information of Swiss bank account holders before it could possibly cause a worldwide panic and economic depression.
A researcher on a sea dive is infected with a deadly virus while on a scientific expedition at the bottom of the ocean. After the researcher escapes quarantine Lockwood must find him before he can infect others and start a lethal epidemic.
Bianco must help a presidential aide who is being blackmailed into divulging details of a disarmament agreement before it even happens. But as the investigation progresses the aide decides that he wants Bianco off the case.
Grover believes that an ancient cult called The Thugs of India is behind the murder of an aging Indian art collector and the theft of one of his statuettes. To find the truth he must travel to India and face a multitude of grave dangers.
Nick Bianco must find Hawley Mattson, a former pro basketball player who has incriminating evidence against his current employer and the syndicate before they can silence him and his threat to their organization, but a small time Chief of Police with a big ego stands in his way.
Agent Grover is called upon to find Cameron after he is kidnapped by a former soldier who was under his command during the Korean War and is bent on revenge for his capture and torture by the North Koreans- which he blames Cameron for.
On behalf of World Securities, Grover searches for a French revolutionist who has mysteriously disappeared from exile. The man who wants him found is also the political leader who placed him in exile along with his own daughter.