You mean Rudolph the Red-Nosed Reindeer? It's usually on TV during the Christmas season. It's a classic animated holiday special that tells the story of Rudolph, a young reindeer who has a shiny red nose that glows. He is ostracized by the other reindeer because of his unique appearance, but he eventually helps save the day when Santa's sleigh gets lost in a snowstorm. It's a heartwarming story about accepting differences and the power of friendship.