Cut off one head, two more grow back.

Harlow's family has been Hydra since the beginning, when Harlow returns from the Snap that devastated the world she finds her parents missing. In order to prove her loyalty to Hydra she must do as she's told.

After many failed attempts to reclaim their prized possession, Hydra knows that they can't afford to have the Winter Soldier as their enemy,

Harlow's mission... kill the Winter Soldier.

(Post The Avengers End Game/ MCU Alternative Universe)