Michael Long, an undercover police officer, is shot while investigating a case and left for dead by his assailants. He is rescued by Wilton Knight, a wealthy, dying millionaire and inventor who arranges life-saving surgery, including a new face and a new identity--that of Michael Knight. Michael is then given a special computerized and indestructible car called the Knight Industries Two Thousand (nicknamed KITT), and a mission: apprehend criminals who are beyond the reach of the law. The series depicts Michael's exploits as he and KITT battle the forces of evil on behalf of the Foundation for Law and Government.

In the silent film era, attorney Leo Harrigan and gunslinger Buck Greenway are hired to stop an illegal film production. However, they soon team up with the filmmakers and become important players in the show business industry. Leo learns he has a talent for directing, and Buck's cowboy persona quickly earns him leading-man status — but both men fall for beautiful starlet Kathleen Cooke, leading to a heated personal rivalry.

Writer Harry Street reflects on his life as he lies dying from an infection while on safari in the shadow of Mount Kilimanjaro.

Julia works as a cashier at a piano factory in Stockholm. She and a couple friend go on a ski vacation to northern Sweden, while her boss at the piano factory notices there a money missing in cash register. He suspects Julia who have to prove her innocence.