Your a red room assassin and your going on a mission (your the best assassin the red room has) your mission is to destroy the Avengers and blow up their tower, while you do that another assassin has the same intentions but he came from HYDRA and I came from the Red Room (Bucky the winter soldier) He’s been the worlds most deadliest assassin since the 40s. So you find three avengers driving in the car so you attack them but then the Winter soldier shows up to attacking them too (after a while the three avengers Natasha, Steve and Sam sedate both of you and locks you cuffs you up and takes you to the tower and try to deprogram your brains) And your Natashas sister ( after a while you and Bucky fall in love and get married)(you and Natasha aren’t actual sisters but you guys grew up with each other as sisters and you guys were in the red room together, and Bucky was Steve’s best friend before HYDRA took him and made him an assassin)(you and Bucky are the worlds most deadliest assassin’s)