Engineer Mitch MacAfee (Jeff Morrow) spots a UFO while directing a study at the North Pole. But when the Air Force arrives, they cannot find anything visually or on radar, throwing Mitch's reputation into doubt. Soon, though, many airplanes are reporting attacks by a UFO, which turns out to be a giant speeding bird from outer space. Along with mathematician Sally Caldwell (Mara Corday), Mitch tries to determine a way to stop the bird, which has a force field that renders all weapons useless.
Director: Fred F. Sears
Producer: Sam Katzman
Cast: Jeff Morrow, Mara Corday, Morris Ankrum, Louis Merrill, Edgar Barrier, Robert Shayne, Ruell Shayne, Clark Howat and Morgan Jones