Three cowboys, mistaken for members of an outlaw gang, are relentlessly pursued by a posse.
A glowing brain-like creature arrives on a beach near a rocket test site via a teleportation beam. The alien communicates telepathically with the children of scientists. The kids start doing the alien's bidding as the adults try to find out what's happening to their unruly offspring.
At a decrepit farm outside a remote American desert community, something takes over the minds of some of the local humans and animals and is able to see through their eyes and control their actions.