Leroy Lester, the timid bookkeeper at Mr. Drysdale's bank for 47 years, is being replaced by a computer and being forced into retirement. After being shown the door, Leroy's car breaks down and he is taken in by the Clampetts. Jethro and Elly Mae work on Leroy's car while Granny gives Leroy some liquid courage. Leroy goes back to the bank, where Mr. Drysdale's computer has now died. Mr. Drysdale offers Leroy his job back, but Leroy informs Mr. Drysdale that he will be taking an extended vacation and staying with his new friends, the Clampetts.