In a snowy wood, the daughter squirrel shows her brother footprints in the snow, telling him they are the Gruffalo's. The son squirrel tells their mother. However, the Mother Squirrel says the footprints are too small to be a Gruffalo and tells her children the story of the Gruffalo's child.
The story begins with the Gruffalo's daughter attempting to follow a hedgehog into the deep dark wood. Her father, The Gruffalo however forbids it, and tells her about the time he met the mouse. He cannot remember what the mouse looks like and describes him as a monster, calling him "the big bad mouse", and his daughter imagines the mouse to be just as her father depicts him.
That night, however, the Gruffalo's daughter decides to explore the deep dark world and find the big bad mouse. On her journey, she follows footprints and meets the animals from the previous story (first the snake, then the owl, and finally the fox), who tell her where to find the mouse. She finally decides that the monster does not exist and that the animals and her father tricked her. She notices the mouse and when she threatens to eat him, he manipulates her to let him show her the monster is real. He makes a scary shadow in the moonlight on the branch of a hazel tree. The Gruffalo's child believes the shadow to be the big bad mouse and runs out of the forest in fear, with the mouse following her. In the Gruffalo cave, she is now comfortable at her father's side and the mouse watches over them.
When the Mother Squirrel finishes the story, her daughter reveals that she made the Gruffalo footprints to prank her brother and they go to play.
A review by Pete Dillon-Trenchard in Den of Geek states, "In short, if you enjoyed the first Gruffalo film, you’ll love this one too. It’s a warm, witty, heart-filled piece of family entertainment that, once again, looks absolutely gorgeous."[6] According to a review by Common Sense Media, "The Gruffalo's Child spans the age divide to entertain families, but if your little one is a sensitive sort, you may want to preview the movie to suss out the impact of some of the more perilous moments before you tune in together."[7]
