Teenagers from Outer Space

A group of aliens land their spaceship on Earth to determine if it is a suitable place to graze their livestock, a giant race of crab-like monsters called Gargons. When the Gargons begin feasting on human prey, all but one of the investigating aliens are pleased to have found such an accommodating planet. The disagreeing alien, however, believes that because Earth sustains intelligent life, they should leave it be. Unable to change his partner's mind, the lone alien sets out to warn Earth and prevent the invasion of man-eating Gargons in a singular effort to save the world. (Echo Bridge Entertainment)