Dragnet - Season 4 - Eps 8: D.H.Q. - Missing Person
Joe and Bill investigate a missing high school student. They find that both the student and her older sister are missing. However, the apartment manager and neighbor say that there is no younger sister. Joe and Bill must find the truth.
About Dragnet

Title: Dragnet
First Air Date: 1967-01-12
Last Air Date: 1970-04-16
Status: Ended
Rating: 6.9/10 (from 15 votes)
Language: EN
Seasons: 5
Total Episodes: 98
Network: NBC
Genres: Crime, Drama, Mystery
Production Companies: Universal Television, Dragnet Productions, Mark VII Ltd.
Synopsis
Police Detective Sgt. Joe Friday and his partners investigate crimes in Los Angeles.
Cast

Harry Morgan
Officer Bill Gannon

Jack Webb
Sergeant Joe Friday