Adam-12 - Season 4 - Eps 15: The Princess and the Pig
A disturbance call leads the officers to a nightclub where a singer named Kathy is strung out on drugs, and clings to Reed on the way to the hospital, telling him someone is trying to kill her and give her drugs. Narcotic detectives decide to assign Reed undercover as an AWOL soldier with a large stash of heroin to sell. Reed makes a deal, but Kathy blows his cover, and Malloy saves his partner from being killed and helps bring down the dealers.
About Adam-12

Title: Adam-12
First Air Date: 1968-09-21
Last Air Date: 1975-05-20
Status: Ended
Rating: 7.1/10 (from 39 votes)
Language: EN
Seasons: 7
Total Episodes: 174
Network: NBC
Genres: Crime, Drama
Production Companies: Mark VII Ltd., Universal Television Entertainment
Synopsis
Adam-12 is a television police drama that followed two police officers of the Los Angeles Police Department, Pete Malloy and Jim Reed, as they patrolled the streets of Los Angeles in their patrol unit, 1-Adam-12.
Cast

Martin Milner
Officer Pete Malloy

Kent McCord
Officer Jim Reed

William Boyett
Sergeant MacDonald