The sounds have been returned and everyone is in a festive mood for the museum's grand opening! But there's a sneaky rogue sound roving the halls... What could it be?
Only one slamming mystery sound left, but Hunch and Audie are at odds! Does the Sound Swindler deserve a second chance? Will they finish in time for LeVar’s grand opening gala?
Hunch is ready to confront LeVar with his suspicions. Can Audie speak up, and be a good friend to LeVar AND a good sidekick to Hunch? Meanwhile, the team goes on an epic journey to track down the source of this haunting and melodic mystery sound.