Scott Dalton and Jackie Sullivan are agents for the American President.
It might be more accurate to refer to them as troubleshooters. This pair is a case of two kindred spirits living life on the edge doing what they both love and both know serves a purpose.
Dalton had been a quarterback in college before learning to fly jets for the Marines, including action during the first Gulf War. After the conflict, he left the Corps and became an agent for the CIA, serving for several years. His reputation as a man who got the job done eventually brought him to the attention of the White House who began to ask for him by name. After a few years of dealing with the bureaucracy, he quit and formed his own security company, under which he continued to take assignments from the President.
Sullivan had a similar high-action background having been an Air Force pilot skilled with both the F16 fighter and helicopters. A specialist in languages and terrorism, she and a friend had their own consulting business on foreign affairs for the Defense Department after having worked there for several years as clandestine operatives.
At the request of the President, the two join forces in the first book to serve wherever needed. Their love of action and adventure is combined with their dedication to the concept of justice. Add immense knowledge of their fields and you have two characters that really entertain.
Adding to the value of the three books is the timeliness of the dangers that the two uncover. Whether it is domestic or foreign, the terrorists encountered bring modern weaponry to bear in their fight and these books reveal how possible, and how deadly, that can be.