Tom and Tracy are hired to find out who killed a skin diver. Tracy discovers that Lady Blanche Carleton, a young widow, is involved in the murder, and that a string of valuable black pearls was the motive--but there are questions as to whether the pearls are real or fake.
A former Japanese officer escapes from a mental hospital, and Tom and Tracy are hired to find him. However, the escapee has amnesia and doesn't remember that the war is over, and his combat skills will make him difficult to catch and his dedication to his "cause" could mean disaster for Honolulu.
The beautiful Marian Summers registers for a stay at the Hawaiian Village Hotel, attracting Tom's attention. What also attracts his attention is a series of burglaries at the hotel that just happened to begin soon after Marian checked in. It turns out that she is the girlfriend of a mainland gangster facing trial, and has been packed off to Hawaii so she won't testify--and her boyfriend's associates have sent a hitman along to make sure that she never does.
An actress shooting a movie in Honolulu accidentally runs over and kills a man with her car. Panicking, she flees the scene. However, the film's assistant director witnessed the accident, and uses that fact to blackmail her.
Tom and Tracy are hired by a real-estate agent to find a missing man. What they don't know is that the man they're looking for is an ex-convict that the agent needs to complete a land swindle he's involved in.
A young man who was raised by a local beach boy sees a woman and has a faint memory of her. Tracy and Tom investigate and find out the woman's son was lost at sea many years ago and that this young man might be her son. Her current husband has designs on her money and blocks the reunion with the help of his mistress.
Los Angeles private eye Stu Bailey tracks an embezzler to Hawaii, and asks Tom and Tracy for help. Their investigation leads to a travel agency that's a front for a swindle/murder racket involving beautiful local girls and wealthy visitors to the islands.
A wealthy businessman who had asked Tracy to protect him is found murdered. Tracy's friend, a reporter, had been investigating the businessman and had a notebook full of information about him, but it was stolen not long before the murder, and contained damaging information about some very powerful people.
Tracy is hired by a Los Angeles law firm to find a missing woman named Nancy Campbell. His investigation leads him to believe that Nancy is being stalked by Harry Gulliver, a man who served with Tracy in the Air Force during the Korean War and whose cowardice almost got Tracy killed.
Tracy is hired by a dancer to find her ex-boyfriend who, because of some letters he had sent her, she believes is in Hawaii. However, it turns out that Tracy may have unwittingly bitten off more than he can chew.
Two young Japanese man visiting Hawaii ask Tom to find an old man called Noburu. Tom locates him, but his instincts tell him to find out the reason the men are so anxious to locate the old man before Tom tells them where he is.
Tom is hired by Ginger Martin to find her missing husband John, who's been gone for two years. Tom's investigation results in his finding John as the captain of rich Verna Collins' yacht--and her unwilling lover. When Verna is murdered, John is charged with her killing and jailed. Tom doesn't believe he did it, and sets out to find the real killer.
Cricket finds herself pursued by good-looking Somerset Jones. Distracted by his attentions, she doesn't notice when she receives a credit card that belongs to the intended victim of a professional assassin. She and Somerset unwittingly become the targets of the hitman, and Tom has to find the killer before he finds Cricket and Somerset.
The widow of the late Arthur Goodwin hires Tracy to help break her husband's will. It seems that Arthur left the family business to his secretary, who seems bound and determined to run it into the ground.
A young man who is about to inherit the family pineapple business gets involved with a beautiful girl and winds up facing a murder charge. Tracy believes that the man has been framed by someone who doesn't want him to inherit the family fortune, and sets out to use the girl to find out who's behind the frame-up.
Tom and Tracy are hired by a professional violinist to guard his very valuable violin. What the musician doesn't know, however, is that his ex-wife and his current wife's ex-boyfriend are out to kill him. They cause him to have a heart attack and then take away his medication, but Tracy gets him to the hospital and saves his life. Undaunted, the murderous duo plans another attempt on the violinist's life.
Tennis bum Barry Logan is suspected of the murder of his boss in an argument over his boss' wife. Fortunately for him, Cricket is his alibi, and she convinces Tom to find the real killer. Tom uses an upcoming tennis tournament to smoke out the murderer.
A man awaiting execution in a jail cell on a French island near Tahiti escapes and communicates with Tracy Steele. Tracy, under the guise of an American journalist, travels to the island and begins investigating.
Tom his hired by a beautiful woman to pose as her husband and sneak a valuable art object into Macao. What Tom doesn't know is that the woman has murdered her real husband, and has the same thing in store for him.