After Lassie is claimed by her original owner, she is reunited with Timmy.
Lassie discovers dangerous traps set by poachers in the woods outside Hudson Falls.
Lassie leads a great escape from the county dog pound.
Timmy and Geoff go into the egg business, with disastrous results.
A lost basset hound visiting Lassie's house eats an exchange student's homework.
Timmy and Natalie must choose between keeping a promise and helping a friend.
No one believes Timmy when he sees a wolf on April Fools' Day.
When Lassie discovers an oil spill, Timmy believes Hank is a polluter.
Timmy and his friends publish a controversial newspaper.
Timmy and Geoff witness a robbery while playing hooky.
Timmy and his friends kidnap Buddy when they think he has rabies.
Timmy and Lassie befriend a street musician who is actually a famous classical violinist.
Local hustlers convince Timmy and his friends to issue a permit that the city council has already refused.
Timmy and his friends rehearse for a talent show as Lassie falls mysteriously ill.
A friend of Timmy's becomes overly dependent upon Lassie while in a pet therapy program.
Lassie helps a wrongfully accused man who escaped from police custody.
Hank and Geoff ride in an airplane; Timmy and Lassie escape from a moving train; Natalie is rescued from the water.
A movie star brings his pet monkey to town, with disastrous results.
Timmy sends a chain letter anticipating good luck for him and Lassie in an agility competition.
Ethan has difficulty handling his adopted dog; a girl has a terminally ill cat.
Timmy tells frightening stories about the Cabot house while on an overnight camping trip.
The notorious Goose Bandit gets Lassie into trouble.
Timmy is left in charge of the clinic and loses a boa constrictor and a pregnant rabbit.
Lassie intervenes after Timmy disobeys his mother and takes a precious heirloom to baseball practice.
Lassie must solve the mystery of UFO sightings over Hudson Falls.
Lassie is falsely accused of terrorizing a farmer's livestock.
Lassie and Mel must fend for themselves while trying to get home.
Lassie tries to save Timmy, trapped in an abandoned mineshaft.
Timmy and Lassie are trapped in an abandoned mine while looking for an escaped emu.
When Lassie digs up a buried artifact, Timmy saves an American Indian burial ground from destruction.
Timmy is tested when he is named director of the school play.
Timmy must choose between friendship and his reputation when he becomes the butt of jokes for his relationship with Natalie.
Timmy mourns his father when the Booster Association has a father-son night.
When all the town dogs mysteriously get sick, Lassie must save them.
Karen is expected to give an important speech, but is delayed by a pair of emergencies.
Timmy adopts an unorthodox method of defending himself from Oliver, the school bully.
Hank tries to give Mel, the mischievous terrier, a stable home when the dog starts stealing people's sneakers.
Lassie saves a litter of unwanted kittens from drowning; Timmy and Doc learn to let go of emotional attachments.
A school assignment teaches Timmy, Geoff and Natalie important lessons.
Lassie and Timmy try to end the feud between Geoff's father and Ethan.
Despite his initial enthusiasm, Timmy can't bring himself to kill an animal while on a hunting trip with Doc.
Lassie protects Timmy and Geoff from two smugglers who are trying to recover Cuban cigars the boys are trying to sell.
Hank steals Lassie to protect her from an unscrupulous biker who wants to use the collie in a scam.
A famous ballplayer prevents Timmy from running away when he thinks everyone has forgotten his birthday.
A boy is stranded on a ledge when a playful Jack Russell terrier mistakenly moves warning pylons from the bike trail.
Lassie helps to restore the shattered faith of a horse healer.
Lassie saves Timmy and Geoff from taking a spill over a man-made waterfall.
Timmy and Billie venture into the swamp to look for a mysterious creature, only to come face to face with an alligator.
Lassie and Timmy help when Hank gets pinned under a pile of rubble.
Lassie is injured while trying to escape from her neglectful owner.