Wolf Attack
It is rare that wolves will attack livestock, so when local Rancher angrily report that their cows are being killed by a vicious wolf, Sarah decides to head into the back-country to figure out what's really going on. With Zoe, Harvey and Lassie along, Sarah hikes into the high country to observe the wolves and see if the Ranchers' accusations could be true. When she discovers the real culprit, Sarah and the kids find themselves in a dangerous situation and only Lassie can save the day.
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More from this season

S1 E1
Saving Zuli!
With the first snows of winter on the way, Zoe, Lassie and Harvey ignore Graham's warnings and track a tagged bird they have released into the wild. The three rescue the bird, too weak to migrate south, but not until they've exposed themselves to a dangerous blizzard.

S1 E2
Poachers in the Park!
Zoe and her mother nurse an injured Grizzly cub back to health and release it into the wild. However, when Zoe realizes she may have just handed the little bear over to a poacher, she, Lassie and Harvey head back into the forest to set a trap for the poacher and rescue the cub.
S1 E3
Gold Rush!
Zoe and Lassie take Harvey up a small creek to see a beaver dam and visit her family's favorite swimming hole. Realizing that the beavers - and the Creek itself - are threatened by a pair of unscrupulous gold miners who have snuck into the area, Zoe and Harvey take in on themselves to stop them.
S1 E4
Danger on the Mountain
Zoe, Harvey and Lassie take a dangerous trip into the forest to find Zoe's beloved Aunt Kim, who has crashed her plane in the high country. What Zoe doesn't know, is that Kim was carrying a cougar in a cage - and finding Kim means walking into danger.