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.

Maisie Revere, a showgirl stranded in Los Angeles, decides to join the local police department on the persuasion of Lieutenant Paul Scott who wants to use her as an undercover agent to expose a conman.

A young classical musician becomes the conductor a high-school all-girl jive band to entertain the troops.

Bud Hooper, a cadet at Winsocki Military Academy, sends an invitation to movie star Lucille Ball to come to Winsocki's big dance. Ball's publicity-hungry agent convinces her to go in order to boost her career. Complications arise when Bud's girlfriend Helen Schlesinger unexpectedly shows up, too.

A young man just released from a reformatory moves to a new neighborhood with his sister, intending to start a new life. However, he gets mixed up with the local mob boss and corrupt politicians and soon finds himself being framed for an arson and murder he didn't commit.