A little boy and his family adopt a runt of a dachshund from a shelter and name her "Shelly," in honor of shelter dogs everywhere. After beating the competition at the nationals, they prepares for the International World of Wiener Dog Racing. The kids sneak away to enter Shelly in the Internationals, and find themselves caught in a devious plot by Mrs. Merryweather that may change wiener dog races forever!.