Stu Bailey and four other survivors of a plane crash at sea reach an isolated island only to discover that it is the target of an H-bomb test.

Jeff's attempts to rescue a kidnapped mob witness lead to a lethal game of tag.

Kookie befriends a pretty teenager who is kidnapped, making him think that she is a runaway heiress and causing Bailey and Spencer to become involved.

Jeff Spencer tries to help a friend with a gambling problem, who has become an assassin's target after becoming involved in a race-fixing scheme.

Stu Bailey is hired by a woman to prove that she is innocent of the mercy killing of her invalid husband.

Stu Bailey, hired to locate some old acquaintances of a disk jockey, finds himself framed for their murder.

Jeff Spencer investigates an apparently accidental death and discovers a serial killer, thereby making himself the next victim.

Jeff Spencer, hired by a Texas oil dynasty to protect their teenage daughter from a fortune-hunting gigolo, must prove her innocent when she is found with his dead body.

Jeff Spencer pursues robbers who kidnap Suzanne in the course of a jewel heist.

Jeff Spencer is hired to pose as a college student to investigate the death of his client's son in a fraternity hazing incident.

Stu Bailey goes to Hawaii to help the government uncover a gang producing phony money, by romancing the girlfriend of the girlfriend of an imprisoned counterfeiter. He gets help from Tom Lopaka of ""Hawaiian Eye"".

Jeff Spencer goes to Mexico to track down a photographer whose insurance company is reluctant to pay out $200,000 for his supposed death.

Jeff Spencer is hired by a blind director to take part in a winner-take-all hunt for a dead movie producer's fortune.

Stu Bailey is hired to protect a temperamental opera diva who has been receiving threats.

Jeff Spencer poses as a singer to expose a jukebox racket that caused another singer's death.

Jeff Spencer is nearly killed himself while investigating the death of a boxer involved in a fight that was fixed.

The firm tries to solve the murder of a former chorus girl who faked her own kidnapping and collected $200,000 from her elderly husband.

Jeff Spencer promises a dying convict that he will retrieve a stash of stolen diamonds and give the reward to the man's daughter, but he has to beat out a crooked insurance investigator.

Bailey is asked by the government to go to Germany to purchase top-secret documents and foil the attempted kidnapping of a scientist.

Stu Bailey finds that the supposedly deserted hotel a client is looking to buy is currently occupied -- by a gang of counterfeiters.

A woman hires Stu Bailey to clear her boyfriend, an Air Force lieutenant who was convicted of espionage.

Jeff Spencer discovers that the countess who hired him to deliver a valuable sculpture to New York is actually part of a ring of spies.

Stu Bailey's agency is hired to go undercover at a dance hall after two hostesses are murdered by an unknown assailant.

Stu Bailey is hired by a teen novelist to find the person trying to blackmail her.

Trailing a fugitive to a small island off Hawaii, Jeff Spencer finds that his cover as a beachcomber gets him into trouble when the man and his girlfriend decide to kill Jeff and pass off his body as that of the fugitive.