Raintree is a thoroughbred horse-farm. Pete, its owner, left the Ritter family and serious debt, but Jean Ritter is determined to keep it in the family, rather then sell control to the wealthy and well-connected Ken Davis. Her invaluable horse trainer, Pablo Betart, who once has a record too, convinces her to hire a new ranch hand- it's Kris(ten) Furillo, who needs the job to convince the judge to end her detention term for car theft and resisting arrest. Her horse-skills impress everyone, from old Henry and young but extremely astute Todd Ritter to the young men on the ranch, good friends Todd Ritter and Kenny 'Junior' Davis. After their best horse comes only fourth is a high-prized race, Jean doubts whether she can hold out financially
After serving time at a teen detention center, Kris Furillo is given the opportunity to start a new life. Her talent with horses is recognized by a volunteer and local trainer Pablo, who arranges a job for her at the Ritter's family run ranch, Raintree. Thrown into a completely new environment, Kris must learn to deal with the challenges of fitting in, while trying not to disappoint the one family willing to give her a chance.
The Ritters are facing challenges of their own even as they reach out to help Kris. Patriarch Henry Ritter and his daughter Jean are in a critical stage of their battle to save the ranch from financial ruin. Kris and Wildfire must help them get back on the map in the world of horse racing.