Kronos

Scientist John Emory (`Rocketship X-M' ) is possessed by an alien intelligence which foces him to provide information for invaders who are en route to Earth in a huge spacecraft. Astronomer Jeff Morrow (`This Island Earth') spots the approaching ship through his telescope, but he thinks it's an asteroid on a collision course with Earth (never mind the fact that the image we see through the telescope is obviously a saucer-shaped object that zigs and zags insanely).

The spacecraft splashes down off the coast of Mexico, and the next morning `Kronos' is standing on the beach -- a giant, rectangular robot with four piston-like legs. Kronos begins it's destructive march across the country, draining power from everything it encounters (including an atom bomb which the Air Force drops on it. Impressive scene). Morris Ankrum makes a welcome appearance as a psychiatrist (insteand of a general, for a change).

The plot has an interesting basic concept, but the script is plagued by scientific inaccuracies and unintentionally funny scenes. Jeff Morrow and fellow scientist George O'Hanlon (the voice of George Jetson) make casual comments about `minor shifts' in the orbit of the approaching asteroid -- even though what they (and the audience) see in their telescope is a wildly zig-zagging spaceship. Morris Ankrum is electrocuted when John Emory throws him against a protective fence that surrounds a high-voltage transformer ( Wait a second -- Ankrum is electrocuted by a PROTECTIVE FENCE?).

Despite the embarassing goof-ups, `Kronos' is loaded with special effects by FX wizards Jack Rabin, Irving Block, and Louis DeWitt, who are also billed as associate producers.