Robert J. Gurney Jr.

Aliens equipped with venomous claws invade a small town, but the town's teenage population is mobilized to fight the menace.

Prof. Erling and his financial backer Victor build a prototype time machine to snatch objects from the past. Latest find, a statuette, radiometrically dates to 5200 AD! When this draws colleague Richard Hedges to the island lab, Erling reveals that 20th-century objects put in the machine seem to be "traded" for analogous future objects by intelligent life. And on the sly, Victor's been trying to get a living visitor. Does the future need help, or is the present in danger?

A teenager and his girlfriend must save the world from "eye" aliens after their attempts to convince authorities of an invasion fall on deaf ears.

A young man steals a car and ends up involved in a pedestrian fatality. The only witness is a girl he has just met. He threatens her life if she talks, so when she refuses to tell what she knows, she is sent to reform school.

A psychopathic young beachcomber pretends to befriend a mother and two daughters living at their summer home.