A little girl named Rodeo Red and her trusty companion Rusty the stuffed dog encounter a stranger in town (her baby brother) nicknamed Slim. Suddenly Rusty goes missing, and Rodeo Red finds him in the clutches of Slim. Red gets into trouble when she tries to take Rusty back, but when Aunt Sal mails another stuffed toy to the siblings, Red is able to pull off the switch and get her sidekick back.