Treasury agents enlist a convict to infiltrate a drug ring in 1940s San Francisco, following a deadly trail that leads to a shady Canadian trading company.
In Haiti, a wealthy landowner convinces a sorcerer to lure the American woman he has fallen for away from her fiancé, only to have the madman decide to keep the woman for himself, as a zombie.
The first U.S. mission to Venus crash-lands off the coast of Sicily, unknowingly bringing back a mysterious reptilian creature that rapidly grows to a monstrous size.
When Abbott and Costello, two city booksellers, scheme their way into an African expedition by posing as seasoned safari hunters to get a piece of a hidden diamond mine, they encounter an angry lion, a tribe of hungry cannibals, and more.
Quirt Evans, an all round bad guy, is nursed back to health and sought after by a Quaker girl and finds himself having to choose between his world and hers.