She has vowed to rescue her brother.

He is determined to protect his group.

They must outwit a cruel and powerful man.

Judith McAdams' brother in New Mexico hasn't been heard from since a letter saying he had been shot. In the letter he wrote he was being harassed by a neighbor who wanted his ranch for the water source. She vows to go help him in any way she can. The woman who raised her insists on going. Judith wires the marshal to check on her brother. When he refuses, she goes to the Pinkerton Detective Agency in Denver. She learns she can become a Pinkerton agent if she marries one and seizes the opportunity.

Peyton Knight values his job as a Pinkerton agent and is good at being a lawman. To keep the job he reluctantly agrees to a marriage of convenience with Judith. Together they will go to her brother's rescue. Peyton is impressed with the beautiful redhead—if only she would admit he knows best. He even admires his mother-in-law but how did he end up with her on their trip? At least he's found three men he trusts to help him rescue the brother.

Their journey is filled with obstacles. Will Judith's brother still be alive by the time they reach him? When they resolve the ranch issue, will Judith and Peyton part ways?