11-year-old Mackenzie has got one friend in the whole world: Cash, his brown-eyed pit bull. His dad won the runt after a long night of drinking and gambling--ever since Mac's mom died, that's all he seems to do, and soon he erupts in a rage at the innocent pup, takes her away in the trunk of his car, and dumps her in the middle of nowhere. Mac vows to find Cash and bring her back home--he has to: All strays are about to be outlawed! Little does he know that while he searches for Cash, she's surviving her own adventures and proving in the process that all dogs--even pit bulls--are born good.