Balto (1995)

I had not seen this movie for at least 20 years when my granddaughter came to visit, and she vastly preferred watching a movie about a heroic dog to spending any amount of time around the dinner table with adults.  She lives with a Saint Bernard and a Newfoundland, so that checks out.  And it turns out what she loves, I, too, love.  even though the animation is shockingly dated.
Here's the story.  In the brutal winter of 1925, a team of sled dogs carried antitoxin across 600 miles of arctic tundra to diphtheria-stricken Nome, Alaska. The town was saved, and the dogs' heroic trek inspired what has become the world-famous Iditarod cross-country dog sled race.
That much is true, although the details here are the stuff of fairy tales.  In addition to the retelling of a great rescue story, there is a subtext as well.  Balto is a half breed, part wolf, and the question addressed here in is can he be trusted? 
Balto is a kind-hearted canine shunned by villagers who fear he might be dangerous simply because he is part wolf. This identity crisis forces Balto to live in seclusion and self-doubt. His only friends are a Russian snow goose, two hydrophobic polar bears and a dog named Jenna. But when disease threatens the town's children—and a pedigree sled team, led by the arrogant Steel, loses its way—Balto quietly sets out to save the day, followed by his faithful pals. So the shunned one wins the day.