S4·E2 Willie's Best Fiend

A bored Willie finds a creature named Lizzy and they play together, unknowing that she is a snorkeater. This makes Junior and his family very nervous and they think that Lizzy is evil. When they leave for her house, the family thinks that Willie has been kidnapped. Lizzy wants him to meet her folks, but her folks want to eat him. Lizzy tries to tell them that a Snork can make an excellent best friend and they escape. The Snorks and the Snorkeaters start arguing, but they work together wwhen Willie and Lizzy get in trouble.