Soon after a young woman breaks off her engagement to a doctor, the doctor is found murdered. Suspicion falls on his ex-fiancé and a pilot with a checkered past.

Sach learns that he has inherited a farm in rural hillbilly country, and when he and the Boys arrive there, they find themselves mixed up with a hillbilly clan named Smith who'll shoot anybody named Jones, plus a gang of bank robbers.

The Indians try to make a fire in the Kettles fireplace the old fashion way, the smoke signal way. Judges are a comin' to award a child with a scholarship. However, who ever has the nicest looking farm and raises their kids in a good enviroment has a chance of winning.

Ma and Pa are trying to raise enough money at the county fair to send their daughter Rosie to college. Ma competes in baking and Pa enters a trotter in a horse race, while Rosie takes up with handsome young Marvin Johnson.

The Kettles leave their ultra-modern home and return to the country looking for uranium. Ma and Tom's mother-in-law, Mrs. Parker, fight over whether their grandchild will be raised "hygiencially."

A man listens to his wife and fakes his own death so that she can get her hands on his insurance policy.

A series of grisly murders plague a small mountain community and the sheriff suspects a local scientist whom he dislikes. Together with a former professor and the professor's pretty daughter, the scientist sets about solving the crimes and discovers the killer is an oversized 16th century conquistador, resurrected by a lightning bolt from his mountain grave.

A Korean War veteran returns to Washington D.C. only to discover his business partner had died and their public-research business sold, so he works there undercover to find out the truth.