Alayna is a hero that goes by the name "Magic " but when she helps Bruce banner transform back from the hulk. she's pursued by SHIELD to join and become an Avenger.

Sami is your average girl, there's nothing particularly special about her. She volunteers at a nearby animal shelter and one night she gets attacked. When she wakes the next morning she notices there's something different. She has cat ears and a tail. Next thing she knows, she's being asked to join S.H.I.E.L.D. When Loki wages war on earth, Sami finds herself in the middle of a group called the Avengers. Sami can't help but wonder, how can she help the fight against Loki?

Alexandria, or Alex for short, is the youngest of the Winchester's. she's not their legitimate sister, but her mother died giving birth to her, and her father gave her up to the Winchester's. She's had a strange mark on her back, a cross, for as long as she can remember. She considers it a birthmark. But there's something weird about it: It glows a bright blue. while saving people, hunting things, and protecting her older brothers, research about her cross has consumed her completely. She meets an angel that calls himself Castiel. He tells her what the cross means, but even he doesn't know how, or why it was put there. Something, even biggger than the Winchester's level of crazy, unravels. However. Alex can't help but give in.