Adam-12 - Season 5 - Eps 1: Dirt Duel
A series of purse snatchings involving motorcyclists frustrates the LAPD, as they cannot follow them down the off-road trails they take. Reed holds a community meeting with the various motorcycle clubs, and the leader of one club challenges Malloy to a dirt bike race. Reed teaches Malloy how to ride a dirt bike, and while Malloy loses the race, he gains the respect of the club's leader, who helps them apprehend the suspects by blocking their escape route.
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