In this whimsical tale, the Cat in the Hat teams up with Nick and Sally as they embark on a backyard adventure that takes an unexpected turn when they encounter a flying robotic dog. This curious robot touches down, collecting rock samples and snapping photos of the Cat, Nick, Sally, and Fish before zooming back into the cosmos. What exactly was this mysterious visitor? Where did it originate, and what is its destination? To uncover these mysteries, the Cat in the Hat revs up his Space-ama-racer, whisking Nick, Sally, and Fish on an interstellar quest to track down the robot. Their journey takes them through a Martian dust storm, past a perilous asteroid field, and dangerously close to Jupiter’s immense gravitational force. In the end, they catch a ride on a comet that safely returns them to the Space Station, bringing back a trove of space samples, thrilling tales, and a tiny memento that accompanies the Cat in the Hat and his friends back to Earth.