Grandma and Richard are getting married! But when Polly accidentally shrinks the entire boat and Grandma is taken away by a bird, Polly must figure out how to fix this and ensure that Grandma's big day is perfect!

Polly goes to Cosmopolitan City to celebrate New Year's Eve with the ball drop designed by her Dad. But when things go awry and Polly loses her Mom's trust, Polly makes a big change... by revealing to her family her tiny secret!