National Geographic Films

From camping out on a wild island to investigate 'monster' wolves and rappelling in search of elusive vampire bats, to flying in to witness a face-off between bighorn sheep and mountain lions and finally, venturing into the heart of darkness to experience the unknown world of Yellowstone's grizzlies at night, Casey Anderson goes up close and personal with rare, endangered, and deadly species in the stunning natural ecosystems that they call home.

Presents a riveting account of the dramatic changes now occurring around the world due to climate change. Leonardo DiCaprio travels to five continents and the Arctic to witness climate change firsthand, going on expeditiions with scientists and meeting with political leaders. Also presents steps individuals and society can take to prevent the disruption of life on our planet.