Finley cant wait for the class field trip to the art museum. After all, shes always painting and gluing and snazzifying and glitterizing. When Mr. Spark assigns a project based on the question: What is art? Finley figures it'll be a snap. But the more art she sees, the more mixed-up she gets, especially since bossy Olivia Snotham won't keep her opinions to herself. Finley starts to worry shell never figure out the answer. As Finley and Henry make some art-rageous portraits of each other, they discover the power of art, and Finley makes her mark in a Fin-tastic way.