The Butler Did It (A Bird in the Hand) (S01E03)

On her 18th birthday, the daughter of a wealthy businessman is abducted, prompting Police Squad to spring into action. The prime suspect in the case turns out to be her boyfriend. While reviewing a recording of the kidnapper's demands, Frank and Ed notice an unusual background noise—either a tuba or a ship's horn. They set out to locate a tuba store. Eventually, they manage to confront the kidnapper, who puts up a fight when they close in on him.