Savannah Sabbah, also known as Savannah Green, is a part of an ancient order of assassins historians believe ceased existence in the thirteenth century. Her first assignment is to seduce a US serviceman for military secrets, but she falls hopelessly in love with her mark instead. When her father recalls her back to the family, she is ordered to destroy all evidence of her existence in her husband's life. She defies her family's orders and hides her son away. Yet this secret could be the end of her, her husband, and possibly the world.
Once again, TSCAA must go back in time to stop an alteration of history, to prevent a "contract to kill" on Jack Evans when he is still a boy. Jack will grow up to be the lead passenger, staging the counter attack inside UA Flight 93 on September 11, 2001. Should Butch and his team fail in protecting Jack, the present they know will be drastically different. World War III is almost guaranteed. But how can he trust the woman he loved with all his heart and soul when she deliberately deceived him, not only about who she really is but also about their son?
Will Butch and Savannah be able to overcome their distrust of each other? Will they be able to fight against their still-sizzling connection in order to remain cool-headed against her ruthless father and powerful family?