A dangerous combination of radiation and insecticide causes the unfortunate Scott Carey to shrink, slowly but surely, until he is only a few inches tall. His home becomes a wilderness where he must survive everything from spiders living in the cellar to his beloved cat.

The first manned expedition to Mars is invaded by an unknown life form, which stows away on the rescue ship.

A botanical expedition to the Himalayas captures a Yeti and brings it back alive to Los Angeles, where it escapes and runs amok, seeking food.

Mr. Dean's body is found face down in the fireplace, burned beyond recognition. Nightclub-singer Eden Lane is convicted of the crime. She is escorted to prison by one of the arresting detectives when she convinces him that she just spotted the murderer outside their train.

In the Windy City, the mob infiltrates a powerful union.

A convict is forced to participate in a prison break even though he only has a year left on his sentence.

Movie star Charlie Castle draws the ire of Hollywood producer Stanley Hoff when he refuses to sign a new seven-year contract. Castle is sick of the low quality of the studio's films and wants to start a new life. While his estranged wife supports him in the decision, Castle's talent agent urges him to reconsider. When Castle continues to be uncooperative, Hoff resorts to blackmail in order to get his way.

After a demonstration of new PT boats, Navy brass are still unconvinced of their viability in combat, leaving Lt. "Rusty" Ryan frustrated. After the attack on Pearl Harbor, however, Ryan and his buddy Lt. Brickley are told they can finally take their squadron into battle. The PT boats quickly prove their worth, successfully shooting down Japanese planes, relaying messages between islands, and picking off a multitude of enemy ships.

A strange sphere settles down in a California canyon, causing both the scientific and military communities to gather around to investigate.

A perfumed message provides the only clue for a blind detective bent on clearing a man accused of murder.