An absent-minded physics professor and his loyal lab technician work on an anti-gravity device. Despite technical failures, they persist, hoping that the work will contribute to rocket launches, and someday to flying saucers.
An old man and his grandson invite a lost hitchhiker to stay the night at their vacation cabin. The stranger disappears, but leaves behind a suitcase that generates huge amounts of electricity. Grandpa turns it over to scientists who are clueless as to how this simple device makes so much power.
After an explosion in a research lab, investigators try to find the source of the problem. Many theories abound including the possibility of UFOs. A chance discovery leads investigators to a conclusion no one could believe
A scientist's new TV ratings device can tell what channel a person's watching just by aiming an antenna at their house. He's perplexed when it registers a channel 84--a channel that doesn't exist--coming from the apartment of an elderly gentleman. A government UFO investigator becomes involved, convinced the old man isn't receiving information, but transmitting it to an alien craft.