In the movie, Jenny plans to invite her friends, Jill, Jody, Holly and Corky, to a party she's hosting in her Uncle Wayne's house. To win the argument, she makes sure her mother, Patti, wouldn't stop her from inviting her friends. To accomplish that, she, her brother, Mitch, and cousin, Adam, bring home the groceries. Before inviting her friends, she tells Adam and Mitch to behave. However, she later despairs when Mitch faints from a potassium deficiency and they can't find his prescription medication. Luckily for her, Adam saves the day by feeding him a banana, remembering an earlier lesson from his father about the chemical content of bananas.