Hoping to help Casey have an epic bat mitzvah, Lunella makes an appearance as Moon Girl, which ultimately brings out the worst in Casey and causes a rift in their friendship.

Marvel’s Moon Girl and Devil Dinosaur, based on Marvel’s comic books, follows the adventures of 13-year-old super-genius Lunella Lafayette and her 10-ton T-Rex, Devil Dinosaur. After Lunella accidentally brings Devil Dinosaur into present-day New York City, the duo works together to protect the city’s Lower East Side from danger.