When a guest at Slate's hotel reports that her husband is missing while carrying a large sum of money, Slate investigates and nearly suffers the same fate.
Slate and Shannon are involved in intrigue over a priceless Chinese figurine after Slate transports a Chinese girl from a tramp steamer to the Trinidad mainland.
After a famous matador collapses during a mock bullfight with Sailor, his associates discover that he'd been stabbed earlier in the day and accuse Slate of killing him out of jealousy. Slate launches his own investigation and discovers that the lusty bullfighter was a married man who left a string of beautiful conquests in his wake - and an equally angry spouse.
A beautiful girl boards a gambling ship against her father's wishes. Slate and Sailor go to the ship to bring her home. A wealthy plantation owner asks Shannon to get his daughter off a gambling ship.
Shannon receives a note telling him that he is to be killed and then finds one of his guests murdered. Was it a mistake? Death writes an obituary for the wrong man.
Two killers trail a man to Shannon's hotel, and shoot him because they think he is carrying diamonds- the Tears of Siva. When they discover he has not got them - Shannon is in trouble again
When Slate warns Konno, a gang boss, that a hired killer will murder him, he endangers his own and Sailor's life and unwittingly gives a wrong picture of the situation.
Slate Shannon outwits a criminal who covets the rich feathered capes of the princes of Montezuma. The art addict steals a priceless antique, then frames another man for the theft.
An ambitious general tries to frame Slate for the murder of a visiting prince, whose wife was a Miami showgirl. Shannon had flouted the visiting prince and now in return faces a murder rap.
Slate Shannon is hired by Aubrey Forrest, a rich man, who makes a $55,000 gamble with death. Then Slate finds the millionaire has been murdered by one of three people.
The police chase Shannon when they find his photo in the cold grasp of a murdered widow, member of the Lonely Hearts Club. Working fast to prove his innocence, Shannon uncovers a grim plot.
Shannon baits a trap when an island merchant dies while protecting his million-dollar possession, his jewel covered skull of Tezcula, ancient Aztec emperor.
Slate Shannon heads for Maracaibo where an oil well he owns in partnership with two other men reportedly strikes oil. There he finds a life and death rivalry taking place between his partners
Shannon must deal with a blonde Hollywood starlet, her no-good husband, and a murder where the body kept disappearing. Fake jewels spell trouble for the starlet who confesses to the accidental killing of her husband.
A convict just sprung from jail fears that his former partner prefers murder to sharing the loot. He forces Shannon to impersonate him and test the partner's sense of fair play.
Slate is hired by Roberta London, a wealthy woman, to locate and return her errant husband. while Slate is away from Trinidad, Roberta's murdered, and Shannon learns she has been the victim of a crafty impersonation plot.
Niko Kazantos, a notorious crook tricks Ines de Baca, a frightened woman, into believing that she is a murderer. Slate Shannon outsmarts the gangster at his own crooked game.
Slate Shannon comes to grips with a triple murderer who nearly escapes being convicted for his crimes. The girlfriend of the wife-killer provides an alibi for him in court and two murders are committed when the man is acquitted.
Slate acts, quickly and heroically, to clear Pepe Gomez, a prize fighter who has been framed for murder, by his wife and his manager, after Pepe returns to his native Trinidad, determined to retire.