The Blue Planet - Season 1 Episode 4
An environment where only the toughest survive, the Arctic and Antarctic are unrelenting habitats. Only in spring does life begin again. Plankton blooms and feeds fast hordes of migrating fish, walruses rake the seabed for clams, and minke and humpback whales gorge themselves on gigantic swarms of krill. But it is a brief spring feast - the ice soon returns and pushes life back into the ocean.
First Air Date : 2001-09-12
Last Air date : 2001-10-31
Runtime : 57 minutes
Genre : Documentary
Cast : David Attenborough
Crew : George Fenton (Original Music Composer), Alastair Fothergill (Director), Alastair Fothergill (Producer)
Quality : 
Subtitles :
- Season 1 : Episode 12001-09-12
- Season 1 : Episode 22001-09-19
- Season 1 : Episode 32001-09-26
- Season 1 : Episode 42001-10-03
- Season 1 : Episode 52001-10-10
- Season 1 : Episode 62001-10-17
- Season 1 : Episode 72001-10-24
- Season 1 : Episode 82001-10-31
