Mitch MacAfee (Jeff Morrow), a civil aeronautical engineer, while engaged in a radar test flight near the North Pole, spots an unidentified flying object. Three jet fighter aircraft are scrambled to pursue and identify the object but one aircraft goes missing. Officials are initially angry at MacAfee over the loss of a pilot and jet over what they believe to be a hoax.
When MacAfee and his mathematician girlfriend Sally Caldwell (Mara Corday) fly back to New York, their aircraft also comes under attack by a UFO. With their pilot dead, they crash-land in the Adirondacks, where Pierre Broussard (Louis Merrill), a French-Canadian farmer, comes to their rescue. MacAfee's report is met with bewilderment and scepticism but the military authorities are forced to take his story seriously after several other aircraft disappear. A gigantic bird "as big as a battleship", purported to come from an antimatter galaxy, is responsible for all the incidents. MacAfee, his girlfriend, Dr. Karol Noymann (Edgar Barrier), Gen. Considine (Morris Ankrum) and Gen. Van Buskirk (Robert Shayne) work feverishly to develop a way to defeat the seemingly invincible enemy.
The climactic showdown takes place in Manhattan, with the bird attacking both the Empire State Building and United Nations buildings. It is defeated by a special type of isotope which brings down its antimatter shield, allowing missiles to kill the bird as it crashes into the ocean outside New York. The last sight of the giant bird is of the creature's claw sinking to the bottom of the ocean.
Who plays Mitch MacAfee
Jeff Morrow