Today is Polly's birthday! She is very excited...and she thinks Mom is secretly planning something special. Or is she? Polly can't tell, because Mom won't say. Mom is baking a birthday cake and being very mysterious, not wanting Polly to find anything out. Dad is about to take Polly to the park, but before they leave, Mom gives her daughter a special treat: a big, juicy strawberry--Polly's favorite! Overjoyed, Polly decides to bring this treasure with her to the park. But when a collision near the swing squishes the strawberry, the distressed Polly wonders if her birthday will be fun after all. What Polly doesn't know is that a much bigger surprise is waiting for her!