The series follows police detective Holmes and his new android partner, Yoyo, on their misadventures investigating crimes.

During one of their first cases together, Yoyo is shot, and Holmes discovers that his new partner is an android, a sophisticated new crime-fighting machine designed by the police department as their secret weapon.

Over the course of the series, Holmes teaches Yoyo how to be more human, while trying to keep his quirky partner's true nature a secret, from both criminals and fellow cops.

Charles Enright in the McMillan & Wife made-for-television films that starred Rock Hudson alongside Susan Saint James, of which Stern was also creator and executive producer.

In one episode his batteries came very close to running down completely, and he was charged by being pushed against an electric fence with his arms extended.