Cara loves being a cowgirl, but it can be hard being the only cowgirl in Creektown. When all the cowboys go off to market, Cara is left to look after town as a stand-in mayor. She and her trusty pony, Hop-along, are determined to keep the peace but news comes that the terrible Black Jake is on his way. Cara and Hop-along capture the villain and prove to everyone what a great cowgirl she is.