The Child You See {Avengers.}

What if four of the Avengers had kids. And they thought they died. Well join for teenage girls living that life.
Marian Stark was obsessed with making technology. After the Battle of New York, she stole the alien technology making her own weapons. She doesn't care that her dad thinks she is dead, seeing that he was always busy.
Madi Rogers was as subject to HYDRA. Madi was captured by HYDRA and had a metal hand with a blue circle on it. she has powers like the Scarlet Witch, but more advanced. She was raised by them but escaped before finding the others and be friends with them. After two years she lives a 'normal' life. Her Dad thinks she died, while caught in a crossfire.
Sam Romanoff grew up in the Red Room, though escaped on her first misson, when she was 11. She was nicknamed the I 'Hell Dove' by her best friend Ava. Her mother's mind was warped so Natasha can't remember her.
Ava Barton lived with her parents and her siblings until one day when playing, outside she was kidnapped. Her 'body' was found six months later. She managed to escape HYDRA before they could change or mess with her mind. She was only 9.
What will happen when Fury finds them and, thinking they were HYDRA, orders the Avengers to get them, not knowing they were who they were?