Julianne, 12, dreams of galloping. But her mother categorically refuses her approaching a horse since her father died in a horseback accident. When she learns that her best friend Olivia will be in Ontario all summer, the young teenager has a brilliant idea: to spend her vacation with her grandma who owns the Le p'tit trot center. Of course, Molly is far from excited about her daughter's project. Yet she agrees to give him a chance. As soon as she arrives at the ranch, the apprentice rider develops a bond of friendship with Jazz, a new four-legged resident who is as greedy as he is fiery. Soon Julianne began her riding lessons under the supervision of her grandmother and proved to be very talented. With Adam, the very cute son of the groom, she tries to tame Jazz, who no one can ride. Even though she has to train tirelessly, Julianne is overwhelmed by her time at camp.