The Cupcake Club comes to Katies defense when a surprise at school leads to unfair gossip. When Katies mom says its time for Katie to meet her new boyfriend, Katie is excited and nervous. She thinks shes prepared, but shes shocked instead. Her moms boyfriend is Jeff Green--as in Mr. Green, a math teacher in her gradeKatie tries to act as normal as possible, but when mean girl Olivia finds out, she tells everyone that Katie is getting special treatment because her mom is dating a teacher. How can Katie stop Olivia and deal with all the new events in her life? Its the Cupcake Club to the rescue, as Katies friends come to her defense, including an unexpected ally.