"Bye Bye Hillridge Junior High" is the fifty-fourth episode of Lizzie McGuire.
Lizzie and her friends are graduating from middle school. They all sign each other's year books, except Gordo, who is unable to decide on what to write in Lizzie's book. He eventually writes something heartwarming and is rewarded by a kiss from Lizzie while posing for the class photograph. Meanwhile, Matt is unable to bear the summer heat at home, and thinks of various methods to keep himself cool.
Absent: Lalaine as Miranda Sanchez