Jessie and her new friend Graham protest the use of polystyrene foam cups at their school. Meanwhile, Zack dodges Belding after betting against Slater that he will be able to ditch his classes.
Notes and Trivia
- This episode contains a blopper. When Zack took off the janitor's uniform at the beach he was wearing a watch, but he wasn't wearing it when he sat down in a chair next to Slater and Kelly.