Lonnie Johnson always had a brilliant mind for rockets, robots, and big ideas. Growing up in a busy house full of brothers and sisters, he learned early on how to persist through challenges and solve tricky problems. This passion for figuring out how things work led him to a successful career as an engineer, eventually designing important systems for NASA. But his most famous creation happened completely by mistake. While trying to invent a new cooling system for spacecraft, Lonnie accidentally designed the mechanics for the Super Soaker water gun. This fun, fascinating true story shows how a love for science and a creative spirit led to one of the most popular toys of all time. You will discover how asking questions, testing ideas, and never giving up can lead to the biggest splashes of success.