Aaron Corbett is the son of a fallen Angel. Aaron is part human and part Angel, which makes him a nephilim. Aaron doesn't know that he's a nephilim till his 18th birthday. Finding out his new destiny. He will have to help the fallen angels before him.
The series tells the story of the aftermath of a global invasion by several races of extraterrestrials that neutralizes the world's power grid and technology, quickly destroys the combined militaries of all the world's countries, and apparently kills over 90% of the human population within a few days.