Pleakley, an extraterrestrial from Plorgonar, began as a Galactic Federation agent specializing as a self-proclaimed Earth expert, though lacking extensive firsthand knowledge. This role brought him to Hawaii, partnered with Dr. Jumba Jookiba, on a mission to capture the escaped experiment Stitch. After the Hawaiian events, Pleakley stayed on Earth, integrating into Lilo Pelekai's extended 'ohana and forming a close bond with Jumba despite initial reluctance. He later accompanied Stitch and Jumba to the fictional Japanese island of Izayoi. There, Pleakley resided with Stitch, Jumba, the young girl Yuna Kamihara, and Yuna's grandmother. On Izayoi, Pleakley continued partnering with Jumba to monitor Stitch under the Galactic Council's mandate. His fascination with Earth customs persisted, often leading to amusement or bewilderment at human technology and social practices. He maintained his easily excitable and anxious personality, prone to dramatic reactions during stress, such as severe seasickness on boats. Pleakley's relationship with his family, particularly his mother, became a recurring element. During her visit to Izayoi, societal pressures prompted him to stage a mock engagement with Yuna's cousin, Tigerlily Sakai, for approval. This culminated in Pleakley affirming his contentment with his unmarried life and personal identity, securing his family's acceptance. Throughout his Izayoi life, Pleakley adapted to the community, participating in local activities alongside Stitch, Yuna, and Jumba. His partnership with Jumba evolved into genuine friendship, with Pleakley occasionally serving as the scientist's confidant or motivator. He encountered others like the small yōkai Kijimunaa and the morphing alien BooGoo, integrating them into his island life. Pleakley retained established traits: occasional gender expression through traditionally feminine clothing like wigs and dresses, interests in domestic activities such as cleaning and fashion, and unwavering loyalty to Galactic Federation rules, sometimes causing friction. His core motivation remained fostering peace and understanding on Earth while navigating relationships within his adopted 'ohana.