Every year, thousands of Antarctica’s emperor penguins make an astonishing journey to breed their young. They walk, marching day and night in single file 70 miles into the darkest, driest…

A young penguin, driven by his instinct, embarks on his first major trip to an unknown destination.

Documentary about the work of Claude Lorius, who began studying Antarctic ice in 1957, and, in 1965, was the first scientist to be concerned about global warming.