Professional rodeo team roper, Katie Upton, is tired of being called the "Mild Child" in relation to her less inhibited twin sister. She's spent a lifetime cleaning up her sister's messes, the last of which landed her working for the handsome, but standoffish, owner of the Rockin' D ranch in Amarillo. Katie whips the ranch into shape in no time but gets crossways with her new boss when she tries to corral his spoiled little princess daughter. Dixie tells her father that Katie is boring, and he seems to agree which makes Katie determined to redefine herself to show the hot, widowed rancher just how un-boring she could be.For ten years, Tommy Tucker had kept his nose to the grindstone working his ranch and raising his motherless daughter. That kept him on the right side of his interfering mother-in-law who seemed determined he was never going to remarry because Tommy had made the unthinkable decision to save his baby instead of his wife, her deceased daughter. When Tommy makes the mistake of hiring a sexy redheaded horse trainer with a smart mouth, she not only puts him on his mother-in-law's radar again, she causes nothing but grief for his daughter too so he fires her to keep the peace. But then Tommy finds out more about her situation and feels guilty so he tracks her down to hire her again, but the woman he finds isn't the one who briefly worked at his ranch. This tattooed blond bombshell is hotter than habaneros in July, and Tommy can't resist sampling her heat. When they get back to the ranch though, he quickly realizes that decision could ultimately cost him his daughter because his well-connected mother-in-law is on the warpath and she has friends in low places.