Jeff Dawson (Gary Cooper) is a hapless oil speculator in South America whose misadventures reunite him with an old friend, Ward 'Paco' Conway (Anthony Quinn). Unfortunately for Jeff, Paco's wife is bad-news, man-eating Marina (Barbara St…
Set in the world of bugs where spiders are the cops, a detective boards a seaplane to San Francisco after finally capturing his arch nemesis, but a murder on his flight draws him into a plot that threatens both the human and bug worlds.