Stargirl (Bucky & Tony) - X-men/Avengers cro...
Courtney Danvers is an expert in her field of Physics, and the only person in the world to successfully build a working time machine.
But when a miscalculation sends her back to 1944, and into an alley in Brooklyn, falling, quietly luckily, into the life of a young Steve Rogers.
As she starts to realise she is stuck in time Courtney becomes rather attached to Steve's best friend, Bucky Barnes. But war is threatening everyone, including Courtney and she has to make sure that her past stays on track.
Can Courtney survive her new reality, whilst making sure she doesn't screw up the future, a future she needs to be born into??