In the heart of the Swiss Alps, spirited 8-year-old Heidi revels in her carefree life with her gruff but loving grandfather, surrounded by lush pastures and towering peaks. When Heidi rescues an injured lynx cub caught in a trap set by a sly industrialist, Mr. Schnaittinger, she names him Pepper and secretly nurses him back to health. But as the cub’s playful antics draw unwanted attention, Heidi learns Schnaittinger’s plans for a destructive sawmill threaten not just the cub, but the entire Alpine ecosystem.
With her loyal friend Peter and the ever-faithful St. Bernard, Joseph, Heidi embarks on a daring nighttime journey to return Pepper to his family in the wild before it’s too late. Along the way, she faces the perils of nature, the lure of industrial greed, and the emotional pull of friendship.