Even though he is the runt of the litter from her father's prize sled-racing dog, ten-year-old Rachel plans to train her puppy to become a champion racer and determines to track him down when he mysteriously disappears. Simultaneous. Deep in the Alaskan wilds, 9-year-old Rachel dreams of owning and racing a sled dog one day. When her father, who breeds and races huskies, gives her the runt of the litter, Rachel names the puppy Silver and sets out to prove he's a champion.