The coat of a huge wooly musk ox named Cozy is the winter home for a growing number of Alaskan animals who mostly get along.

Raven and the other animals try to awaken the frozen river to the coming Alaskan springtime.

"Togo and Balto were fast and trustworthy.  Sled dogs are trained from a very early age, but nothing could have prepared Togo and Balto for their role in delivering a lifesaving serum in record time to save a town of sick children.  The speedy dogs were the only way that the serum could reach the children in time" --

Akiak the sled dog refuses to give up after being injured during the Iditarod sled dog race.