Everybody loves a mystery, especially Barbie! She's always hot on the trail of some exciting case, collecting clues and using her smarts to save the day. But for Barbie, the best part about solving a mystery is getting the chance to help others! According to Hawaiian legend, the treasured Pink Pearl brings health to whomever possesses it. When it vanishes suddenly, almost everyone who's seen it is a suspect. That is, until Barbie and Kira's detective work helps recover the pearl - and leads them to a most unusual thief!