Downton Abbey star Hugh Bonneville narrates a six-part natural history series, which was filmed over the course of several years on five continents. Each episode focuses on a different endangered young animal and follows the creatures as they grow up in our world in the face of extinction, often relying on connections with friendly humans to guarantee survival. These adorable subjects are an elephant calf, two young cheetahs, a ring-tailed lemur pup, a moon bear cub, Iberian lynx kittens and African penguins. Each species is orphaned or born through conservation programs and state-of-the-art photography captures efforts to rehabilitate and rewild the animals