In the high country of Colorado, there's nothing more important than loyalty . . . except maybe love.

Hazel Noble loves her job managing the mares at High Country Ranch. As the foaling season begins, she gets to spend even more time with the horses . . . and with her secret crush, Maverick Oakley, the owner of High Country Ranch and her brother Sterling's best friend.

When Maverick unwittingly ruins Sterling's wedding, he goes from best friend to worst enemy. With the rift between their families, Maverick is faced with the possibility of losing Hazel, and he can no longer deny how much he's always cared about her. The trouble is that he and Sterling made a vow not to court each other's sisters, and he doesn't want to break his word and cause further problems.

Maverick gathers the courage to speak with Sterling about their vow, but Sterling demands that he stay away from Hazel. When a tragic accident strikes, Maverick is forced to finally choose where his loyalties lie—with his best friend or his best friend's sister. After pushing Hazel away, will he be too late to win her heart?