All six episodes of the BBC's high-definition nature documentary series chronicling some of the planet's most spectacular natural events, and showing how these phenomena can transform entire landscapes, drawing in millions of animals and determining their fate. The series shows how powerful natural forces can trigger chain reactions involving everything from microscopic organisms to entire tracts of rainforest. Events featured in the series include the Pacific salmon run, the greening of the Serengeti, the plankton bloom in the Pacific Northwest, the spring thaw in the Arctic, the flooding of the Okavango Delta and the South Atlantic sardine run.

• Is Discontinued By Manufacturer ‏ : ‎ No
• Product Dimensions ‏ : ‎ 5.31 x 0.59 x 6.77 inches; 3.53 ounces
• Media Format ‏ : ‎ Blu-ray
• Run time ‏ : ‎ 6 hours
• Release date ‏ : ‎ June 15, 2009
• Studio ‏ : ‎ 2entertain
• Number of discs ‏ : ‎ 2