A young boy named Luke and his grandmother go on vacation only to discover their hotel is hosting an international witch convention, where the Grand High Witch is unveiling her master plan to turn all children into mice. Will Luke fall victim to the witches’ plot before he can stop them?

After their production “Princess Ida” meets with less-than-stunning reviews, the relationship between Gilbert and Sullivan is strained to breaking. Their friends and associates attempt to get the two to work together again, which opens the way to “The Mikado,” one of the duo’s greatest successes.