No Overflix. Rocket Saves the Day is a preschooler feature based on the New York Times bestselling Rocket book series created by Tad Hills and published by Random House Children’s Books. The movie is billed as a “hero’s journey in which an enthusiastic young pup, Rocket, and his new best friend, Little Yellow Bird, embark on a quest to save their town through the power of reading.” Throughout their journey, Rocket and his friends learn how to put letters and sounds together to make words – the building blocks of reading.