Little Preppy the Pin lives in a sewing box in Grandma's cottage with his mom and dad. Unlike everyone else, Preppy never gets chosen to help because he's too small. He's told that he will find his special purpose someday, but the waiting makes him sad. After Grandma's cat knocks over the sewing box, Preppy gets stuck on a little girl's shoe and dragged outside. It's a dangerous world, but Preppy makes it safely to a milliner's shop, filled with fancy hats-and that's just the beginning of his journey! With the help of new friends and kind kids, Preppy learns that he can be helpful, no matter his size. He might be small, but Preppy can make a big difference.