Hotwire

From publisher blurb:

This is a new collectible RPG in a Golden Age Superheroes vein: to play, you just need any set of the playbooks, with at least one per player. Each playbook gives you a pre-made character and all the rules needed to play them or to run the game for others.

From Introduction:

Exclusive story: the Secret Origin of...Hotwire!
Alien pilot Qel Qes was the best flier amongst her species, but while testing a new stardrive she was thrown across the universe, with no way back! Adopting Earth as her new home, she uses her advanced technological knowledge and strange alien powers to assist the primitive Human Race, whist learning about them and coming to care for them... but will she ever find her way home again?