Angel Grove High is sponsoring a book fair. One such book, a fairytale called "Grumble The Magic Elf", gains the attention of Kimberly, who remembers it from her childhood. Lord Zedd & Rita Repulsa use their magics to zap Kim, Tommy & Rocky into the storybook. The only way to get out is to help the title character, Grumble, deliver a cart of toys to some orphans to undo a spell of grumpiness placed upon him. But Rita & Zedd steal the toys, ensuring the trio remain trapped forever! Can they find another way out, or will the books' own bad guys prove to be too much for them?