Every story has a beginning. George and Jessica's started long before the CIA.
The child of a CIA agent exposed Jessica to the cruel world of espionage early. George's father's rigid military existence created a defiance that followed him. Together they endured brutal training, experienced their first kills, fell in love, were betrayed and through it all remained steadfastly there for each other.
The CIA went looking for them because they were raw talent and figured they could mold them into what they wanted. Unfortunately for the CIA, George and Jessica lived their lives with a different set of values and a fierce dedication to each other. In the end, they took what the CIA offered and then broke the mold to become the team the CIA would spend the next decade fighting against.