Jed Clampett's swamp is loaded with oil. When a wildcatter discovers the huge pool, Jed sells his land to the O.K. Oil Company and at the urging of cousin Pearl, moves his family to a 35-room mansion in Beverly Hills, California.

Anne and "Poppy" Rose have three quirky kids. Anne has a generous heart and the belief in the innocence of children. To the unhappy surprise of her husband she takes in the orphan Jane, a problem child who already tried to kill herself once.