Journey to Alaska – America's last great frontier. Discover a land of breathtaking diversity, that's changing at an alarming rate. Over the past 40 years, Alaska has warmed by up to five degrees – five times more than the global average and faster than anywhere else in the world!

Follow a team of renowned scientists, naturalists and wildlife filmmakers as they assess the impact of global warming on this vast region, before it's too late. Watch as they go in search of the state's most extraordinary wildlife – then, track and film some of the world's most stunning animals in one of the most breathtaking landscapes on Earth.