Heart of a Lion is a feature length documentary that follows biologist Mark Elbroch on a sweeping journey from the rugged wilderness of Jackson, Wyoming, to the misty forests of Washington’s Olympic Peninsula. At the center of the story are two mountain lion mothers, F61 and Yoko, whose lives Elbroch has tracked for years. As his connection with these elusive cats deepens, the film reveals an intimate and rarely seen portrait of one of North America’s most misunderstood predators. Heart of a Lion explores not only the ecological role of mountain lions but also the emotional intelligence and resilience that define their lives in the wild.