While in Canada Timmy and Lassie encounter a downed hot air ballonist. By accident they end up in the balloon which takes them into the wilderness. The young boy and his dog must find a way to survive even fending off a wild pig.

When livestock falls prey to a wild dog, local farmhands mistakenly accuse a mother cougar and her cubs of hunting their heard. It's up to Lassie and her owner, Forest Ranger Corey Stuart, to identify the real culprit and keep the young cougar family out harm's way.

The Scottish collie Lassie goes to Alaska. There Lassie meets the Indian boy Neeka, who stays in the woods with his stepfather, who is a Ranger. When on behalf of his school Neeka is collecting plants for his herbarium both Neeka and Lassie have a lot of adventures.

In this touching drama a disparate group of people rally together to save a dog that has fallen into a deep well.

Sally gets surgery for her hearing. Lassie gets lost after having to hide out in the back of a laundry van.

A two-part episode of the original Lassie television series (that aired in 1971) made into a single TV-movie.

The Stratton kids, Samantha and Chip, and their grandmother, Ada, drive to visit their Uncle Stuart. Grandma collapses and dies in a strange town, leaving the kids and Lassie on their own.