After publicly exposing his angelic abilities, a guilt-ridden teenager must confront his origins in order to hone his skills and protect his loved ones from his fallen angel father.

This is a very good logline, the only thing that I miss is why the fallen angel father goes after his loved ones. Not sure if you know it or if you are hiding it as some sort of final twist, but it is important to mention that in your logline. I guess that it can be that his father wants to wipe out them all in order to get son for his own evil purposes. But only you know. Also fallen angel father is very practical but does not sounds good. Maybe – “protect his loved ones from a fallen angel – his own father!”

Otherwise, great work! You can now only triumph newest Twilight.