Waterdam Farm is quiet and peaceful-where horses, cats...and a dog roam and play. On a crisp February morning, a new horse arrives-making the animals very curious. Polly is a retired racehorse-but something about her is rather peculiar. She's round and moves very slowly. The farm animals quickly welcome her-and she becomes part of their family. Then news spreads throughout the barn: Polly will soon be a new mom! In early spring, she gives birth to a tiny filly...