S05E15: Dora's Christmas Carol Adventure

Santa Claus narrates the story of when Swiper tried to swipe the star off the Christmas tree at Dora's Nochebuena party. He then finds himself on Santa's naughty list. When Dora tries to ask Santa if there's any way to take Swiper off the naughty list, Santa says the only way is that if Swiper learns the true meaning of Christmas.