A bitterly divided family is forced to cooperate when their holiday plane crash-lands in the California wilderness. Overcoming their differences, they concentrate on repairing the plane and attempt to build a makeshift runway which will help them escape the unforgiving terrain.

An elaborate deception emerges when an American astronaut is lost on a mission to Mars. Space agency officials fearful of losing public support and government funding decide to cover up the accident by employing an exact double for the lost astronaut. The ruse begins to unravel when the wife of the lost astronaut realizes she is living with a different man. Although angered by the deception, the woman has fallen in love with the replacement and plans to keep the secret. They both have a change of heart and decide to reveal the secret when they discover a new Mars mission is underway.

A devastating heatwave hits the Los Angeles area and a young expecting couple try to evade it by escaping to a mountain resort town.

In the North African desert in World War II, a crippled American fighter plane that is unable to take off tries to evade and destroy a pursuing Nazi tank.

Agent Sam Casey is in a satellite explosion and the radiation turns him invisible. He gets a watch that keeps him visible, and he uses it to switch from visible to invisible. He is assigned to transport a chemical called Tripolydine, which is purported to be the most efficient fuel; when the cover is blown on that and he uncovers and stops the Tripolydine fraud, he must then stop a terrorist from blowing up race cars.