Hilda the pot-bellied pig lives at the foot of a hill. Life is uneventful and she is always where she expects herself to be. At the top of the hill lives a mischievous baby who is never ever where people expect him to be ... which is why he is known as the Runaway Baby. But on a high-speed escapade in a pram, the Runaway Baby and Hilda's worlds collide ... and an unlikely friendship begins.