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Roundup!
Zoe and Harvey are finally old enough to accompany Graham on the annual roundup of the park's wild horses. Working alongside a group of cowboys, the kids and Lassie help Graham drive the wild horses back to the valley where they can be well taken care of, and eventually placed safely on ranches in the area. When one pregnant mare goes missing, Zoe and Lassie can't leave her behind¿especially with rustlers in the area.
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Other episodes for this season
![Saving Zuli!](https://image.tmdb.org/t/p/w300/1Co7TFA4yE5LhMFAQ6cMrkLFweD.jpg)
![Poachers in the Park!](https://image.tmdb.org/t/p/w300/aS1IXUihjniAIxixJRvv0ONLJDG.jpg)
![Gold Rush!](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![Danger on the Mountain](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![The Treasure of Dan Montaigne](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![Forest Fire!](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![Spider Bite!](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![Roundup!](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![Wolf Attack](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![Avalanche](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![The Day Off](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![The Tornado Hunters](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![Where's Lassie?](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![Who Knows Best?](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![Hide and Seek!](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![Frances' Garden](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![The Iron Horse of Grand Mountain](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![The Demon of Diamond Lake](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![Thin Ice](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![Trapped](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![Momma Zoe](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![Condors in the Valley](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![Harvey's Journey](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![The Secrets of the Parker Clan](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![The Grand Mountain Adventure Challenge - Part 1](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)
![The Grand Mountain Adventure Challenge - Part 2](https://image.tmdb.org/t/p/w300/5Yt7ycJWSlqsa5zGdVglvFsJIgZ.jpg)