Explores the annual salmon run on the west coast of North America. Hundreds of millions of Pacific salmon return to the mountain streams in which they were born, where they will spawn and then die. Their passage upstream is fraught with danger, from rapids, waterfalls and hungry grizzly bears.

Other Episodes:
The Great Melt
http://www.videosift.com/video/Attenborough-Nature-s-Great-Events-The-Great-Artic-Melt
The Great Migration
http://www.videosift.com/video/Attenborough-Nature-s-Great-Events-The-Great-Migration
The Great Tide
http://www.videosift.com/video/Attenborough-Nature-s-Great-Events-The-Great-Tide
The Great Flood
http://www.videosift.com/video/Attenborough-Nature-s-Great-Events-The-Great-Flood
The Great Feast
http://www.videosift.com/video/Attenborough-Nature-s-Great-Events-The-Feast