A drive-in favorite, this sci-fi classic follows teenagers Steve and his best girl, Jane, as they try to protect their hometown from a gelatinous alien life form that engulfs everything it touches. The first to discover the substance and live to tell about it, Steve and Jane witness the blob destroying an elderly man, then it growing to a terrifying size. But no one else has seen the goo, and policeman Dave refuses to believe the kids without proof.
Biff Jones is a driver/salesman for the Good Humor ice-cream company. He hopes to marry his girl Margie, who works as a secretary for Stuart Nagel, an insurance investigator. Margie won't marry Biff, though, because she is the sole support of her kid brother, Johnny. Biff gets involved with Bonnie, a young woman he tries to rescue from gangsters. But Biff's attempts to help her only get him accused of murder. When the police refuse to believe his story, it's up to Biff and Johnny to prove Biff's innocence and solve the crime.
Fifteen year old Alex and his older brother, Michael, both like the same girl, who has worked in their family pub for years. When she accompanies the family on a holiday at the beach, Alex hopes he can attract her attention, but as usual it is Michael who gets the girl. But there are compensations for Alex.
