Willy the baby elephant decides he's grown up enough to go swimming in the river. It starts out fun, but he soon realizes he has become stuck in the mud. Willy is in big trouble! He calls for Mumma Elephant to help him out. While trying to help, Mumma Elephant falls in the mud, too. Now, they call Aunty Elephant, but their rescue plan fails again and again as family members also fall victim to the muddy river bottom. Then, the ground begins to shake. It's going to take Willy's great-great granddaddy, the mammoth, to save the day, reminding Willy of the importance of family connection and love.