Liam, Gustav, Frederic and Duncan are storybook heroes, known for saving the likes of Sleeping Beauty, Snow White, Rapunzel and Cinderella. But they have been cast out by their princesses and by their kingdoms. The four underdog princes must team up together when they uncover an evil plot that could destroy all of their kingdoms. Will they win the love of their princesses?
Recently, Fox Animation Studios bought the rights to the book, and will be making a movie based on it. It will be a family-friendly animated film. The release date is unknown but the plot has been likened to a fairytale Avengers.