The Grinch sits in his cave wallowing in self pity thinking about his life. He is joined by his dog Maxx the only other being he will talk too. He talks about his hate for Christmas and makes a plan to steal the Funks Christmas.
The Grinch heads down to Funkville with an evil intent. He meets a Funk named Sindy Loo who loves Christmas. He has a conversation with her and decides he will steal Christmas.
In his cave at the top of the mountain his plan comes to life as he dresses like Santa. He made his dog Maxx his reindeer ready to pull the sleigh, they wait till night and head to the town.
In town he gets to work stealing everything to do with Christmas. He takes present from around and under the tree and then even the tree itself. He heads around to every house in the town taking it all.
When he finally returns to the cave he looks at Maxx and tries to decide if he made the right decision.
Sindly Loo Funk shows up to the cave knowing he is responsible for the disappearance of Christmas in the town. She begs and pleads with him to return Christmas but this year his heart doesn't grow three sizes it shrinks, he denies her pleads and destroys the Christmas presents officially ruining Christmas.