As Lt. Harrelson lies in a hospital bed, severely wounded, the other members of the team reminisce about their best moments together in clips from previous episodes.
Arkwright starts a sales drive to try and get rid of a large stock of apples that he had over-ordered.
A retarded waitress who sees a narcotics cop commit murder allows herself to be persuaded that another man committed the crime.
The son of Mrs. Whipple returns to Walnut Grove after serving in the Civil War. To forget his painful past, he takes morphine, which he becomes addicted to.
Jaime's mother has supposedly returned from the dead for a last visit with Jaime in Ojai knowing that foreign agents are after her and that her visit endangers Jaime's life.
A mentally unbalanced veteran touring a movie studio suddenly thinks he is back fighting in Vietnam.
Parslow, an old friend of Arkwright dies and Arkwright handles the catering for the funeral, hopefully with a large profit coming his way!
The cases of an easy-going ex-convict turned private investigator.
Fred and Lamont go on a camping trip in the wilderness but Fred quickly gets sick of the great outdoors and demands that they return home. However, they quickly realize that they are stranded when the truck refuses to start. This leads father and son to reminisce about times they have spent together. Fred and Lamont recall scenes from previous episodes including: My Kingdom for a Horse, Earthquake II and The Engagement Man Always Rings Twice
Stone searches for a fugitive, and is dogged by the fugitive's innocent and naive daughter.
Fish considers an operation; a burglar known as ""The Mole"" leads Harris and Wojo on a merry chase through the city sewer system. Ron Carey plays the Mole, and returns as Levitt in the next season.
Pursuing a gunrunner with spinal meningitis, Baretta becomes infected and has 48 hours to find the man and his cohorts before he has to go into quarantine.
The Independence Day celebration in Walnut Grove is threatened when taxes are increased. A Russian immigrant shows the people why America is a great place. Even though the immigrant lost his land since he couldn't pay his taxes, he was happy to be in America. He considered it to be the best place to live in the world.
Oscar enters Jaime as a contestant in the Miss United States Pageant in order to uncover an espionage operation that is endangering American security plans.
Maude hires an ex-con as her cook, but does not find it easy to live with the knowledge of what he has done.