In the town of Whoville, the humanoid people called Whos are filled with excitement about celebrating Christmas. However, the only one who is not thrilled is the grumpy, cantankerous and green-furred Grinch, whose heart is "two sizes too small". He lives in his cave with his dog, Max, and only goes into Whoville to buy groceries and harass the Whos.
With Christmas approaching, the Grinch's attempt to ruin the annual tree-lighting ceremony goes wrong so the Grinch soon decides that he will steal Christmas from Whoville. He and Max acquire a fat reindeer, whom the Grinch calls Fred, and steal a sleigh from his neighbor Bricklebaum.
After a test run, the Grinch and Max discover that Fred has a family, and the Grinch emotionally agrees to let Fred go home with them.
The Grinch was released in the United States on November 9, 2018. It grossed over $540 million worldwide, becoming the highest-grossing Christmas film of all time, as well as the highest-grossing Dr. Seuss film adaptation. The film received generally mixed reviews from the critics, who praised the animation and the vocal performances (particularly from Cumberbatch) but criticized the lack of creative license.