S1, E1: While fixing her Grandma's broken locket, Polly realises that it can shrink her down to “Pocket Size”! Polly and her friends use the locket to get in to the concert of their favourite singer, Melody. But Griselle Grande and Gwen want the locket and kidnap Melody to get it. Now Polly must save Melody, the concert and keep the locket powers a secret!