1. To the Ends of the Earth

8.3

. 26 October 2011. 59 min

A survey of the Arctic and Antarctic, discovering magical new ice worlds inhabited by the most extraordinary animal survivors on Earth.

2. Spring

8.545

. 2 November 2011. 58 min

The sun returns after months of darkness, dynamically transforming the landscape. Millions of migrants join the hardy residents as they find mates and begin to breed.

3. Summer

9.1

. 9 November 2011. 59 min

Summer creates a window of opportunity that attracts hordes of visitors who cram a lifetime of drama into a few short months as they feed, fight, and rear their young.

4. Autumn

9

. 16 November 2011. 59 min

Polar landscapes are transformed as the big freeze returns. Most animals leave on epic journeys, some now battle to breed, and, for the hardy few, it’s a time of opportunity.

5. Winter

9

. 23 November 2011. 59 min

During winter most animals abandon the polar regions, but a few extreme survivors remain. This is the story of their strategies and battles to survive the planet’s harshest weather.

6. The Last Frontier

9

. 30 November 2011. 58 min

Humans have no natural protection against the cold of the polar regions. Why, therefore, have we been visiting these remote places for thousands of years; and what keeps us going back today?

7. On Thin Ice

8.8

. 7 December 2011. 58 min

A look at how scientists measure changes in the polar regions and what those changes mean for the animals and people who live there, as well as the rest of the planet.