When a radio falls from the sky into the hands of a wide-eyed Tibetan Mastiff, he leaves home to fulfill his dream of becoming a musician, setting into motion a series of completely unexpected events.

Teenage Tibetan Mastiff Bodi (Luke Wilson) is expected to be the next guard of the village of Snow Mountain, succeeding his father Khampa (J. K. Simmons), who years ago drove out a pack of gangster Grey wolves, led by the villainous Linnux (Lewis Black). Khampa has some local sheep disguised as Mastiffs to give the illusion the village has multiple guards to keep the wolves at bay, but Bodi has trouble perfecting his father's signature move the Iron Paw, which projects a powerful blast that can only happen if Bodi "finds the fire." Khampa has forbidden music in the village as it distracted Bodi from his duties when he was younger..