A woman (Gloria Talbott) takes three men in plane down to Mexico to look for her husband who disappeared 3 years earlier. There they are forced to land in an area of high radioactivity that one of the group wants to exploit but it also turns the local animals giant. This is a low budget B monster movie from the 1950's that has very poor effects. This is not the best performance from Gloria Talbott as she struggles to realise that the Cyclops is actually her radiation deformed husband. Also not one of Lon Chaney's better films