Experiment 626, also known as "Stitch," is a mischievous blue alien possessing strength far exceeding his small stature. While traversing the distant reaches of outer space, Stitch's spacecraft is drawn into a storm, resulting in a crash landing on Izayoi Island, Japan. He is discovered by a young girl named Yuna, though the two do not get along well until Stitch saves her life during a thunderstorm. From that moment on, Yuna and Stitch become inseparable, spending time together, enjoying themselves, and dealing with the consequences of Stitch's antics. Eventually, the pair are found by Stitch's fellow alien companions: Dr. Jumba Jookiba, the self-proclaimed "evil scientist" who created Stitch, and Pleakley, the leading expert on Earth's culture. Having finally located Stitch, Jumba and Pleakley join the duo, filling their days with an abundance of Japanese culture and high-tech mishaps.