讲述只有3.5颗星评价的妹妹（温贞菱饰），人生最大梦想是打败5颗星的姐姐（李霈瑜饰）。。Shaun a Southern California surfer, his dad's plan to move to mountains of Montana crushes him until he meets a dog who can snowboard. With the help of his canine friend, he is set to make a run for the annual snowboarding championship.。