Watch Natures Most Amazing Events online: Episode 1 Arctic Summer

In the Arctic summer nearly three million miles of sea ice rapidly begin to melt. For the masters of the ice, the polar bears, the change in habitat threatens their survival but for others - like arctic foxes, beluga whales, the elusive narwhals and immense flocks of birds - this brief summer transforms the Arctic into one of the richest places on Earth. The Nature’s Great Events team captures the greatest seasonal change on the planet in a year when the Great Melt was the largest ever recorded the sea ice had never retreated so far or so fast. In the summer of 2007 a staggering 400,000 square miles of extra ice disappeared. At this rate, it's predicted that the Arctic summer could be ice-free in 20 to 50 years time. As the temperature rises the cameras follow a mother polar bear and her cub making their first journey on to the sea ice in search for their favorite prey ringed seals. See how these and more arctic animals struggle to survive the harsh conditions, year after year.

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