Chip begins to think it would be great to be an older brother, so he wishes for a little sister. After the new Hawkins family move into the vacant house across the street, a wild sequence of events results from an improbable case of mistaken identity -- an infant is somehow confused with a leg of lamb left in the boot of Steve's station wagon.
Casts:
Fred MacMurray, Don Grady, Barry Livingston, Stanley Livingston, William Demarest, Beverly Garland, Tina Cole