Sameen Shaw, Decima Agent

Tumblr Prompt: Root x Shaw: Post 4x11. Shaw was taken by Samaritan operatives and brainwashed. A year or so later, Shaw's mission is to kill Root's new number. They finally come face to face and Root can't believe it, but Shaw doesn't remember her. Eventually Shaw remembers. Much angst, but happy ending. (Will be updated if I get more prompts. Chapters may be unrelated)