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.
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.
In 2020, after the colonization of the moon, three spaceships are launched from Lunar Station 7. They are to explore Venus under the command of Professor Hartman, but an asteroid collides and explodes Capella.
A crusty, eccentric priest recruits three reluctant convicts to help him rescue a children's leper colony from a Pacific island menaced by a smoldering volcano.