For Mack McKinley and his team of GhostWalker killing machines, urban warfare is an art -- and now he's come face-to-face with a woman who can play just as tough. She's Jaimie, a woman with a sapphire stare so potent it can destroy a man. Years ago she and Mack had a history -- volatile, erotic, and electric. Then she vanished. Now she's walked back into Mack's life, as a spy with more secrets than are good for her.