When Timmy and Boomer discover there will be girls at the Halloween party they are looking forward to, they go out hunting for foxfire to smear on their faces so girls won't kiss them and are trapped in an abandoned house.

Paul's expensive new sow ""Our Gal"" turns out to have an unfortunate predeliction zfor running away, even through reinforced fencing, and after she has a litter of piglets.

Timmy's plan to help his new friend Henry, who is afraid of dogs, backfires when Henry mistakes Lassie's extra attention as love for him and believes she wants to stay with him.

On a bird-watching expedition for school, Timmy sees a rare snowy egret, but no one will believe him. Finally a professor is dispatched to see if his report is true.

Boomer is jealous when Timmy seems to prefer the company of his English visitor, Robin, and his little Cairn terrier Basil, so he and a classmate make fun of Robin's short pants and school tie

Several days before Christmas, Lassie is struck by a truck while saving a three-year-old girl and so seriously injured she needs a special veterinarian to operate on her

When Lassie keeps coming home with greasy muck on her legs, Timmy and Boomer investigate, and discover a pool of oil on their property. But Uncle Petrie's investigation of the pool proves to be his undoing.

Timmy, disappointed that there are no contests in the county fair a small boy can participate in, enters his burro Lucky in a farm horse event.

Knowing Ruth hasn't had a new hat in four years, Paul buys her a lovely spring hat he discovers she was longing for, but Timmy and Lassie inadvertently ruin it while playing.