Christina Carter is an American Agent that was out to seek Russian Agent, Hannah Perez. But as we first see Christina is standing there in a frozen state. Hannah comes up and uses a device so that she can program Christina to be her faceless slave. After pressing the button it sends an electric wave through Christina. Hannah decides to laugh and slap her a few times then flashes back to their initial encounter. Christina thought because she was bigger then Hannah she would win the fight. But Hannah had some clever moves of her own.
As Hannah flashes back to their present time she gets Christina the American agent dressed to become the faceless agent and add her to the collection.