Gossipy Mrs. Oleson is Walnut Grove's hotel telephone operator.
A hostile teenager steals Charles' watch.
The spoiled son of a farmer becomes a terror in Miss Wilder's classroom.
Charles and Caroline renew old acquaintances at their 25th high-school reunion in Milwaukee.
Three escaped convicts seek shelter in the school for the blind.
Laura teaches sign language to a deaf friend.
Jonathan's wife and Mary's baby die in a fire at the school for the blind accidentally set by Albert.
Almanzo's younger brother arrives, and Charles hopes Laura might fall for someone closer to her age.
Oleson leaves home and meets a young woman who almost makes him forget his age - and his wife.
When Laura takes over an injured teacher's class, Almanzo starts seeing her in a new light.
Laura accepts Almanzo's marriage proposal, but Charles insists they wait two years to wed.
Laura sees Almanzo rubbing a saloon-girl's back, Nellie's boyfriend says he's leaving.
Laura finally sets her wedding date, while Miss Wilder finds love for the first time.
A two-part episode concludes with Laura's wedding prospects fading and Miss Wilder's disappearing altogether.
Plans for a new life are threatened when widower Jonathan Garvey and his son are harassed by young toughs.
The new football coach thinks a game is akin to war, and only winning counts.
At the school for the blind, a caretaker shelters two runaway orphans facing separation.
News of a blind artist's exhibition moves the girl's natural mother to renew contact with her.
A jealous Laura moves back with her parents when a pretty acquaintance reenters Almanzo's life.
Albert lies to impress a pen pal, unaware that she's confined to a wheelchair and doing the same. Suzy Gilstrap, a paraplegic, plays the girl.
Freight-hauling partners Charles and Almanzo agree on a race to decide the better route between Walnut Grove and Sleepy Eye.
A concussion restores Adam's sight but Mary is worried the change may threaten her marriage.
Adam has regained his sight but fails to calm Mary's fears when he leaves for Minneapolis to compete for a scholarship.