I have a brother. Sharp. Bigger than me, and all growl. I have sisters. Pounce, who loves to wrestle, and Wag, who talks with her tail. And best of all, my brother Warm, who likes to curl up under my chin, the only pup smaller than me. Swift, a wild wolf cub, lives with his pack in the mountains. When a rival pack attacks, Swift and his family scatter, and Swift sets out on an incredible journey through dense forests, into barren wilderness, and across...