Travel to the ice mountains of Chile to discover the secrets of the puma, the area’s biggest and most elusive predator. Discover how this mountain lion survives and follow the dramatic fate of a puma mother and her cubs. Narrated by Uma Thurman.

From early spring to late summer, follow new animal mothers through the trials of raising a family in the Rocky Mountains. Cranes migrate north to give birth, a bison mother protects her lambs from threats and young mountain goats learn to climb.

Young animals face new challenges as winter envelopes the Rocky Mountains, and spring means the end of childhood. A grizzly mom prepares her cubs for hibernation, a mountain lion raises her kittens and a bison calf must learn to survive the snow.