Blueblood billionaire, Macmillan Deveroux, is now one of the federal government's elite agents. He has traveled the world and tackled the most complicated missions. No job was too dangerous, at least not until he was assigned as a bodyguard for Savannah. The feisty scientist is beautiful, with brains and a lot of lethal-her father trains the government's elite agents. When he thinks the woman holding his heart is safe, he realizes he couldn't be more wrong and leaves on a mission no agent has ever returned alive from. Savannah Pierce has always stayed clear of the agents her father trained-until Mac came along. Having a bodyguard was a Presidential Order. Only she wasn't counting on falling for the man protecting her. When Mac's sent on a mission that goes incredibly wrong, there is only one thing to do: to prove to everyone she is more than just a pretty face with a brain. She's determined to rescue Mac since it means saving her heart.