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
Foul play puts Wildfire in danger and sets Matt & Kris on a hunt for the culprit. Matt's troubles go from bad to worse when a gambling debt makes him part with a prized possession. And Dani gets unexpected support from Junior when she needs it most. In turn, she does something that surprises everyone, even herself.
While recovering from her broken arm, Kris tries to earn a chance at riding Wildfire in a upcoming race. Tina gives Kris prescription painkillers to help cope with the pain of riding with a broken arm. Also, Matt asks Tina if he can escort her to a party and Dani meets with a woman who she thinks may be her mother.
Tina Sharp leaves the Raintree Farm and rides for the Davis family, and Kris feels betrayed by Junior because their relationship is getting serious. Pablo and Jean finally decide that Kris should be the one to ride Wildfire. Tina dumps Matt, and his gambling becomes a major problem again, Jean then calls his father to talk to Matt. Dani meets the woman, Isabelle, who she thinks is her mother.
Kerry comes to Kris with an opportunity to audition for a hot sauce commercial. She wants to pass, but decides not to when she realizes how much the money will help her and Raintree. When she has no chemistry with the actor she must kiss, the director grabs Junior to play the part, and the kiss reignites their relationship. Junior becomes partners with Pete on his new club, and begins to get acquainted with his mother Isabelle. Dani buys two horses to start her own stable against Davis, and Pete is getting more involved in his family's life to the chagrin of Charlie.
Kris is put in an awkward position by a former inmate friend while she is helping out at a charity event at the prison. Matt and Junior decide to open their club without Pete, who is out of town. Meanwhile, Dani discovers that Isabelle lied to her.
Matt steps in to train Kris for a race while Pablo is out of town attending to personal matters, but all hell breaks lose on Raintree when Matt is suspected of breaking loyalties to help Dani train for the same race. With Charlie's help, Todd shows Jean that he can stand up for himself. Junior gets some unexpected help repairing damage to his club. Meanwhile, Isabelle shows her true motives.
Kris has to ride for Dani Davis and is actually riding against Wildfire. Junior bets everything he has [the club] against Wildfire, with Bobby who claims he has turned over a new leaf. it turns out there is a major accident where both wildfire and dani's horse are hurt. Kris starts to beleive the accident is her fault.
Kris learns what happened to Kerry while Raintree deals with the unexpected fallout of the Breeders' Cup win. Meanwhile, Dani takes over the Davis ranch, but that doesn't stop her father from calling the shots; and Jean welcomes home a familiar face after a death in the family. Also, Matt rethinks his destiny on the farm.
Upon learning that Avatar, Wildfire’s biggest rival, is one of Raintree’s new client’s horses and that Tina Sharp, Kris Furillo’s biggest rival, will be riding Avatar in the next big race, Kris and the Ritter family struggle to come to terms how to deal with having their biggest opponent train at Raintree.
The rivalry between Matt and Junior heats up; Gillian returns to town and finds solace with Junior.
Kris and Junior face more brick walls when they decide to move to Alaska together. Meanwhile, Kris rides Wildfire in their final race together.