With the first snows of winter on the way, Zoe, Lassie and Harvey ignore Graham's warnings and track...

Zoe and her mother nurse an injured Grizzly cub back to health and release it into the wild. However...

Zoe and Lassie take Harvey up a small creek to see a beaver dam and visit her family's favorite swim...

Zoe, Harvey and Lassie take a dangerous trip into the forest to find Zoe's beloved Aunt Kim, who has...

When Lassie and the kids find an old treasure map in Mrs. Lee's store, it sends them on an adventure...

Zoe and Harvey witness a lightning strike that begins a forest fire. Making a heroic choice not to h...

Zoe, Lassie and Harvey are with Graham in a nearby town when Sarah calls them with an emergency. Mrs...

Zoe and Harvey are finally old enough to accompany Graham on the annual roundup of the park's wild h...

It is rare that wolves will attack livestock, so when local Rancher angrily report that their cows a...

Skiing in a local resort, Zoe, Lassie and Harvey meet a reckless young teenager named Drew. The supr...

Lassie and the Parker family's attempt to spend a quiet day together having a picnic like a normal f...

Zoe and Harvey must ignore an oncoming storm to help a group of amateur tornado chasers survive outs...

Hiking in the forest, Zoe stays behind to hang out with some older girls she admires and Lassie head...

When Zoe and Harvey make a bet who can get home first, they take different paths. While Harvey follo...

When Sarah must head into the field to investigate an illness that is affecting the park's deer, Zoe...

Following Mrs. Lee's indications to find a special flower which may cure Biff, Lassie and the kids l...

Robert Humphrey begins running steam-train tours in Grand Mountain which Lassie and Zoe see are scar...

Lassie and the kids have found a family of Black-Footed Ferrets living in the park! These rare anima...

Humphrey's niece, Samantha, brings a group of girls up from the city for her birthday party, she and...

Zoe, Lassie and Harvey head into the high country with Graham when the waters of Diamond Lake begin...

When Sarah airlifts a wolf and her pups to another park for their own safety, Zoe discovers that one...

After Lassie spots a condor that's been hurt in the wing, Zoe and Harvey must transport the endanger...

Harvey's father was a famous rock climber who died when Harvey was just a baby. When a Park event le...

Zoe's father Graham grew up in the Valley. His grandparents were some of the area's first residents....

The Grand Mountain Adventure Challenge is an annual contest for kids. The Challenge tests kids' abil...

The Grand Mountain Adventure Challenge begins with Zoe and three other teams competing. From the beg...

It’s "Adopt-a-Puppy" day and Zoe and Harvey host Olive and her father who have come in search of a n...

Olive and her father listen as Zoe relates how she and Lassie were trapped by a forest fire after Ha...

Now that Zoe and Harvey are old enough to take part in the Grand Mountain treasure hunt to celebrate...

It's Harvey's birthday and his mother offers him his maiden flight in a hot-air balloon. Of course,...

After Lassie helps a young horse-rider to control her unruly mustang, Zoe and Sarah take her in as t...

Today is Halloween! Zoe seizes on the opportunity to prove to her mother how grown-up and responsibl...

While Harvey is on vacation in the Caribbean for the winter, Zoe has to help her father to secure th...

Zoe and Harvey set out to investigate theft from the park archaeological site. The pair soon finds t...

Zoe decides to pursue the family tradition by winning the Park's legendary blueberry pie competition...

While helping establish a new nature preserve on the edge of the Park, Zoe, Harvey and Lassie meet t...

When Zoe and Harvey visit the new dam at the edge of the park, the noises emanating from the constru...

Zoe, Harvey, Graham, Beth and Lassie are forced to interrupt their hike on the valley glacier when t...

To perpetuate his father's own passion, Harvey decides to enter the photo competition for the Park's...

When Lassie spectacularly rescues a herd of escaped zebras, a circus director is so impressed by her...

When Mrs. Lee opens a letter that Zoe, Harvey and Lassie bring her, she learns that she is the last...

Impatient to see her friend Judith again, who has left the valley several years hence, Zoe reminisce...

When a mysterious epidemic breaks out in the park, Zoe is determined to find out what has caused it...

Zoe and Harvey are amazed to discover a rare baby white buffalo in the park. The animal's presence h...

Graham has to take the helicopter out to search for a reckless snowboarder in danger and, because Gr...

After Lassie wards off a dangerous wolf attack, Graham asks the kids to take care and avoid the park...

When Graham informs Sarah that the bat colony living in the gulch is behaving strangely, Zoe, Harvey...

Zoe's beloved aunt Kim is passing through the valley and surprises Zoe by taking her camping with Ha...

Thanks to Lassie, the children avoid a landslide on the hill overlooking the visitor center. Looking...

Zoe, Harvey and Lassie try to stop Samantha and Nick exploring an old gold mine whose access has bee...

Thanks to Lassie, the children avoid a landslide on the hill overlooking the visitor center. Looking...

Business at Mrs. Lee's store takes a hit when the hotel opens a new boutique. Zoe decides to enter t...