Jim examines another Roger Corman classic with 1957's "Not Of This Earth," starring Paul Birch, Beverly Garland, Jonathan Haze, Morgan Jones, Dick Miller and Anna Lee Carroll. An alien from another world is trying to blend in with people on Earth so that he can harvest them for their blood. It is all leading up to a mass invasion from outer space. What will be the fate of mankind? Find out in this episode of "Monster Attack."