In Time for Prom

Carrie Beerson was late for work when she got pulled into a paranormal space by a mad scientist, only looking for a guinea pig for his experiment; the creation of an alternate world, an alternate time. When given the option, there was only one place she wanted to go; her high school prom. Not going to her prom was one of the many things she missed out on, being stuck growing up male in the late 20th century.
After a wonderful night, she finds herself stuck in the past, stuck at the most awkward period of her life. She must deal with the tensions of growing up trans, all over again, this time out in the light of day, with the eyes of her school upon her. As the weeks go by, she finds that the past isn't how she remembers it, as events warp themselves around her. Time was quickly catching up to her as the chances to change the greatest tragedy of her lifetime quickly start to fade.
Will the friends she made along the way help her in her pursuit of righting that wrong, or only get in her way? Who are these mysterious agents that are investigating the events leading up to that day? And what is with the black sedan following her everywhere she goes?