Nature: Willow: Diary of a Mountain Lion (PBS, Wednesday, October 29, 2025)

Nature Key Art

For a decade, a network of cameras hidden deep in Montana’s Sapphire Mountains has been watching. The result is an unprecedented and intimate look into the secret life of a creature that lives to remain unseen. This film pieces together the complete life story of Willow, a female mountain lion, and her young.

Using only footage captured by these non-invasive trail cams, the episode constructs a gripping narrative of survival. Every frame reveals the complex social interactions, the life-and-death hunts, and the maternal bonds that define Willow’s world. This is a biography of a ghost of the forest, told entirely in her own actions. How does a mother teach her kittens to survive in a world of constant threat, and what never-before-seen behaviors are finally brought into the light?

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Nature airs Wednesday October 29, at 8/7c on PBS.

I'm Noah Masire, News Editor at Memorable TV with a focus on show renewals, cancellations, network ratings and the latest industry trends.