Thorn Drennan stares death in the face when he's nearly shot by a ranch trespasser. But this is no ordinary trespasser. Pregnant and running for her life, Sophia Carranza has crossed the Mexican border, leaving a trail of ruthless enemies behind.

Sophia's protection is Thorn's first assignment as an undercover agent, and he senses trouble. Inexplicably drawn to her beauty and fighting spirit, Thorn fears his growing desire for Sophia could jeopardise the mission. And when Sophia's captors finally catch up to them, will Thorn trade his life for another?