Garth's brother Keith is met with resentment when he takes over running the ranch, but he proves his mettle when a storm strikes the ranch and starts a fire that traps Lassie in the woods.

Karl Burkholz and the ""scout"" for a migrating flock of doves become friends when Karl nurses the injured bird.

Lassie pursues a colt that escapes from the Baker ranch. (Elaine Baker seems to have problems keeping her livestock in check! Later in the season she loses a calf.

A crow that snatches Mike's wallet leaves the boy angry and determined to find the animal.

A small deaf boy is found wandering the grounds of the ranch and Lucy, communicating with him in sign language, discovers he feels no one wants him.

Deprived of the dog the Holdens have given him, the boy flees.

Deprived of the dog the Holdens have given him, the boy flees.

Lassie must rescue three kittens from the incoming tide.

Lassie befriends a racehorse so nervous that he can't complete a race.

A runaway inner-city orphan is taken in at the ranch, but is distrustful of everyone.

Joey runs away when he finds out he has to leave the ranch.

The Holdens are afraid Karl will not survive after a heart attack robs his will to live.

While out in her own, Lassie's foot is severely damaged when caught in an illegal trap. She comes under the care of a reclusive Native American healer while Dale and Keith mount a search for their beloved animal friend.

Lassie alerts Willy to a dog floating down the stream and together they rescue the stray. At first the dog is fearful of country life but Lassie teaches the little animal which becomes important when a tree traps the collie.

Dale, riding Midnight and accompanied by Lassie, is injured when he falls from the horse.

Midnight and Lassie must go for help when Dale cannot move.

Lassie's determined to retrieve the puppy stolen from the Holden barn by a coyote.

Keith accompanies Lucy and Elaine into the city for tests with Lassie going along. Lucy turns out to be a candidate for surgery to restore her hearing but during the operation Lassie wanders off.

Lassie, after accompanying Keith to the big city for Lucy's hearing operation, gets lost. Keith looks for her as Lassie wanders the city, taking in a kid's baseball game, the ocean but then enters an army firing range.

Lassie continues her journey home, getting a fish hook in her paw before being helped by Jim and his surfer friend. Accepting a ride north with his two new pals he nears the Holden Ranch. Lucy finds out if her hearing operation was a success.

Lassie, after a narrow escape on a firing range, befriends two young men who have been camping at the beach in their van. While they tend the injured collie, Lucy, now returned home, prays for two miracles: that her hearing -- and Lassie -- will return.

Lucy trades lessons in ""home"" to an attractive young drifter who gives her guitar lessons in return.