A test pilot is missing and a search party is sent out in the jungles of Mexico; however, while searching they uncover a monster in the jungle who became this way due to a dose of radioactivity.
The Cyclops is a 1957 American science fiction horror film written, produced and directed by Bert I. Gordon, starring James Craig, Lon Chaney Jr. and Gloria Talbott. The theme of a monster created as a result of radioactivity was a common one in the 1950s.