is the 17th episode of the fourth season of the Disney Channel sitcom Austin & Ally . Originally aired on November 22, 2015, the episode centers on the group's high school graduation and a crisis involving a missing book. Plot Overview
: In her quest for yearbook photos, she even manages to touch the heart of her longtime "frenemy" Chuck, who asks her to sign his yearbook.
: This was the 16th episode filmed for the final season and serves as a major milestone as the main characters finally graduate from high school.
: Ally discovers she has a missing library book, which the school claims she never returned. This outstanding debt threatens to prevent her from graduating with her class. Austin takes it upon himself to track down the book to ensure she can walk across the stage.