An exceptionally small dog is born onto a peaceful farm owned by a farmer/sport's lover named Innis. Innis grows an attachment to the runt of the Chihuahua litter because of her tough attitude. He names her Sosa, after the baseball player, Sammy Sosa, because she loves to watch Sammy play ball on TV. When Innis is forced to give up his new friend, Sosa is sent off to a pet store. The harsh conditions of small spaces and a mean owner make her days in the shop grueling. However, a dream owner named Vinny rescues her and returns her, temporarily, to the joyous lifestyle she missed. The problem...