She's sworn off love. He's sworn off relationships. But in a world of gold buckles and eight-second rides, Knox and Kacey start playing with fire.

Kacey Hart has learned the hard way that men see her as a prize, not a person. As heir to Colorado's most successful ranch, she's built walls to protect both her heart and her legacy. The Diamond Hart Ranch is her sanctuary-until Knox Ward arrives.

Professional bull rider Knox Ward lives by one rule: no girlfriends, no exceptions. With a world championship in his sights and the summer rodeo run just six weeks away, he can't afford distractions. Then he meets Kacey.

As desire burns hot, Knox's championship dreams and Kacey's guarded heart collide in ways neither expected. When the stakes rise and the summer circuit calls, they face an impossible choice-walk away or risk everything for a love that could either fulfill their dreams or leave them both broken.