In the far north-west of the American continent stretches a land some one and a half million square kilometres in size. Only six hundred thousand people inhabit this region where the frozen, the coniferous forests and the mountains dominate a landscape which, in some places, has never been trodden by man.
The start of the melt announces the resurgence of life in Alaska. With the vegetation, food returns, and the largest of Alaska's land carnivores, the grizzly bear, awakes from its winter sleep. The grizzlies are solitary animals, and at the start of spring hunger makes them even more dangerous.
All of them are waiting for the salmon to arrive, their only hope in this cold, hostile land. Each year thousands of salmon return to the rivers where they were born, providing the local wildlife with the food they need to build up the reserves necessary to survive the long, harsh winter. They are manna from the sea, the reserves of protein and fat everyone is waiting for. The salmon, quite simply, are life.
The salmon have finally reached the land they originally came from, but their odyssey has just begun. Now, they have to face seagulls, eagles, otters, and above all the great predator of Alaska.
They will have to conquer the rapids, leap up waterfalls and escape from their predators without eating a single thing.
Finally, after many hardships, the salmon make it to their respective spawning grounds. After choosing a suitable place, the salmon prepare their nests.