The secret plans for an alien invasion have been hypnotically implanted in the brain of six-year-old Tammy MacKaphe. Small-town cop Sam Adams becomes the protector of Tammy and her mother Karen. Sam and Karen must find the key to bring out the secrets before the three of them are killed by federal agents, including Federal Agent Naples, who is controlled by the alien leader Commander Fauk. Senator Ben Arnold, Sam's uncle, could solve the problem with the might of the U.S. government, but is fearful of risking his credibility by acknowledging flying saucers. Sam, Karen and Tammy are finally assisted by a group of Americans who are considered "kooks" by a society that doesn't believe in the alien menace.