A Tibetan mastiff (voiced by Luke Wilson) must defy the naysayers in his remote mountain community in order to follow his dream of becoming a rock star like his idol, Angus Scattergood (Eddie Izzard). But there's no one left to guard the sheep when he goes away to seek his fortune in the big city, rendering his flock vulnerable to a hungry wolf (Lewis Black). This animated feature was produced by Chinese rock singer/songwriter Zheng Jun.