A family going to California accidentally goes through an Air Testing range closed to the public. They crash and are stranded in a desert. They are being stalked by a group of people, which have not emerged into modern times.

To save it from being put to death, Professor Albert Dooley takes home a dumb duck from the research laboratory, which accidentally was exposed to X-rays. At home he discovers that it lays now golden eggs. Since he's broke all the time, his family welcomes this new source of income greatly, and tries to keep it secret. But their greedy neighbors become suspicious.