The Office of Scientific Investigations tracks down the source of increased magnetism and radioactivity in Los Angeles, and discovers that a man-made...
A scientist and his team of underwater explorers search for the culprit who has stolen the world's supply of nerve gas and hidden it somewhere in the...
Given the chance to live in a simulated underwater home for a month, a scientist convinces his family to take advantage of the offer. Once the family...
While widowed Porter Ricks is away at school learning to be a park ranger, his teen-aged son, Sandy, under adult supervision from a neighbor, remains...
