This is the exposition. David -the main character- is hiding from 2 epics (an epic is a person that got super powers during Calmilty) which are deathpoint, and Steelheart. Steelheart killed David's father who is the only person who didn't fear S.H
Davis is now 17 or 18 at the time that epics rule the land. David's dad thought that Steelheart, or S.H, was good. It is dar all the time. David meets the reckoners ( A rebel group).
David and Megan, the girl, are riding away from Steelheart's troops then megan gets shoot (You have to read the book, it is called Steelheart) and killed.
Steelheart and david fight eachother. Prof, the founder of the reckoners, is using his powers to help David destroy Steelheart
David and Prof have won and David seen megan, Who is also an epic, and David and Prof are walking towards a helicopter.
David is thinking of Megan when he carried her to the reckoners base (Which he loves megan) while looking at the sun finally rise after years of darkness.