Lizzie has finally gotten the courage to ask Ethan Craft to the school's Sadie Hawkins Dance. But when he tells Lizzie he thinks of her as "just a friend," Lizzie does what any teenage girl with a heart-wrenching crush would do-she sets out to change his mind! Plus, Gordo agrees to tutor Ethan in math, but when Lizzie insists on helping, it adds up to driving him crazy!