Charlie's Angels - Season 3 - Eps 20: Teen Angels
The Angels assume false identities in order to investigate a murder at a posh girl's school. During their probe, they discover that some of the girls are involved in the sale and abuse of drugs and alcohol.
About Charlie's Angels

Title: Charlie's Angels
First Air Date: 1976-09-22
Last Air Date: 1981-06-24
Status: Ended
Rating: 6.676/10 (from 210 votes)
Language: EN
Seasons: 6
Total Episodes: 115
Network: ABC
Genres: Action & Adventure
Production Companies: Spelling-Goldberg Productions, Columbia Pictures Television
Synopsis
Beautiful, intelligent, and ultra-sophisticated, Charlie's Angels are everything a man could dream of... and way more than they could ever handle! Receiving their orders via speaker phone from their never seen boss, Charlie, the Angels employ their incomparable sleuthing and combat skills, as well as their lethal feminine charm, to crack even the most seemingly insurmountable of cases.
Cast

Jaclyn Smith
Kelly Garrett

Cheryl Ladd
Kris Munroe

Tanya Roberts
Julie Rogers

David Doyle
John Bosley

John Forsythe
Charles Townsend (voice)