Festive animated comedy based on the story 'How the Grinch Stole Christmas!' by Dr. Seuss. Living in a secluded cave on Mount Crumpet, the Grinch (voice of Benedict Cumberbatch) is outraged when the residents of nearby Whoville decide to make their lavish Christmas celebrations last three times longer this year. Fearing his tranquil existence will be disrupted, the Grinch decides to steal Christmas by posing as Santa Claus on Christmas Eve. However, despite his best efforts, a cheerful young girl may get in the way of the Grinch's sinister schemes...