Rosie the Clydesdale is a BIG horse. She likes her life on the ranch and helping the farmer with his chores, but she also has a secret dream: she wants to be a rodeo star. She finally gets her chance when she teams up with a plucky cowgirl named Oakley, but the rodeo events aren’t designed for a big horse like Rosie. When a rogue bull disrupts the competition, though, Rosie and Oakley might be the only ones big and brave enough to stop him.