Luna was found in a Hydra base at the age of 18 a year after Wanda and Pietro Maximoff were freed.
Wanda found Luna on a mission to find Bucky after the physiologist put Bucky into winter soldier mode.
I'm really bad at summaries so just bare with me-
Bucky Barnes and Natasha Romanoff we're forced to have a child. They have twins and they get taken. The girl to red room. The boy to hydra. They experiment on both. The get reunited in hydra 9 years later. They also become close with Wanda and Pietro Maximoff. They stay with Bucky for a while before he gets out of Hydra. Years later Bucky comes back to save them.
I don't own and of the marvel characters. I own scarlett and her storyline.
I also haven't edited any of this so please be forewarned.