The New Adventures of Lassie (2014)

Episode Overview

Zoe and Harvey are now old enough to join Graham for the annual roundup of wild horses in the park. Teaming up with a group of cowboys, the kids and Lassie assist Graham in herding the wild horses back to the valley, where they will be cared for and eventually relocated to nearby ranches. However, when a pregnant mare goes missing, Zoe and Lassie refuse to abandon her, especially with rustlers lurking nearby.