An L.A. District Attorney attempts to take an unwilling murder witness back to the United States to testify against a top-level mob boss. Frantically attempting to escape two deadly hitmen sent to silence her, they board a Vancouver-bound train only to discover that the killers are onboard with them. For the next 20 hours, as the train hurls through the beautiful but isolated Canadian wilderness, a deadly game of cat and mouse ensues in which their ability to tell friend from foe is a matter of life and death.
An outlaw saved by a Mexican girl hunts the holdup partner who shot him in the back.
Down-on-his-luck Mike Cormack is hired to fly to a Caribbean island to retrieve a missing ruby. On the island, possibly involved with the ruby's disappearance, is his ex-girlfriend.
A prison convict escapes through the Louisiana swamps.
Many interested parties are after the loot from a factory payroll heist but the mobster who hid it has amnesia after undergoing experimental brain surgery in the prison hospital.
A tough cop meets his match when he has to guard a gangster's widow on a train journey from Chicago to Los Angeles.
Career gambler Dan Milner agrees to a $50,000 deal to leave the USA for Mexico, only to find himself entangled with fellow guests at a luxurious resort and suspecting that the man who hired him may be the deported crime boss Nick Ferraro aiming to re-enter to the USA.
The wedding of Ellen and David is halted by a stranger who insists that the bride is already married to someone else. Though the flabbergasted Ellen denies the charge, the interloper produces enough evidence that his accusation must be investigated. Ellen and David travel to the small coastal town where her first wedding allegedly occurred. There, they meet a number of individuals whose stories make Ellen question her own sanity.
Dr. Herbert Lee, an archaeologist seeking to decipher ancient Mara inscriptions, is aided by his son Terry, Terry's pal Pat Ryan, and Normandie Drake. Jungle pirate and warlord Fang (Dick Curtis) plots to kill The Dragon Lady, Queen of the Temple of Mara, and seize the treasures of her ancestors. Both Fang and The Dragon Lady have sworn death for any foreign intruders.
A young farm maid overhears two cow-hands talking in the barn, and she becomes convinced they’re about to rob her. She barricades herself in a room and calls the police. Her call wakes the chief, who rallies the country justice constabulary and they set off toward the farm, in steam-car and on foot. Meanwhile, the maiden’s parents rush to save her. Everything points toward a showdown in the barn, where no one, including the police force, will be cowed.