Sayetta is an Archangel sent on a mission to seek out eight archangels born into the physical world. She takes on physical form to move among the living. With the help of Gabe, a paranormal investigator she seeks out the others who are scattered around the world. She knows that the archangel inside each of them is trying to come to the surface. Not everyone can cope with what is inside them, some go mad or commit suicide, while others embrace it. She must find them and teach them how to embrace their soul consciousness. Until this happens they are vulnerable to the powers of the demons.
In the first installment Lucifer sends an old and powerful demon to see out Auriel who has been reborn and has already begun to remove demons. She is unaware that every time she uses her abilities it sends a shockwave through the world, this allows the demon to use the shockwave to track her. It's a race to get to her before the rogue demon finds her.