Emily and her best friend Tilly are going to watch their friends from the riding stables compete at a local horse show. During the exciting day they meet Isla, who has recently moved to South Wales, and her two ponies. During half term Emily enters the little competition held at Awelon Tyn, but when Zippy, her favourite pony, comes in lame, it seems her first show is in jeopardy. That is, until Isla suggests a solution.