Far away, in her vast ice palace, the Snow Queen plots to rule the world by deflecting all the sun's warmth away from Earth so that it freezes over. But her mirror breaks, and on her mission to find all the missing pieces, she kidnaps Tom, who has part of the mirror in his body. Can his sister Ellie save Tom, and stop the evil Queen from achieving global dominance?

The Snow Queen holds Ellie responsible for ruining her plans to freeze the world and sets out to seek revenge. She kidnaps Dimly the flying reindeer and once again Ellie and her friend Peeps the Sparrow are forced to travel, this time to the South Pole, where the Snow Queen and her Trolls have taken up residence.