This episode covers the life that exists in frozen areas of the world such as high up in the mountains, and in the Arctic and Antarctic. This episode also discusses how plants and animals adapt to extremes of temperature, for example where there are very cold nights and extremely hot days. Includes coverage of algae, insects, sheep, squirrels, seals, penguins, foxes, polar bears, lemmings, owls, caribou, geese, Eskimo and much more. Places visited include Kenya, South America and USA.