In this sequel, 12-year-old Lottie Brooks faces the chaos of adolescence with her signature wit and awkward charm. At home, her baby sister is a constant source of noise and distraction. At school, Lottie turns beet-red and stammers whenever she sees her crush, Daniel. She dreams of landing a role in the upcoming school musical, but the thought of auditioning makes her nervous. With the support of her best friends, Jess and Molly, Lottie navigates the ups and downs of growing up. However, when the class bully, Amber, starts to wedge herself between Lottie and Molly, their friendship faces new challenges.