In a ceaseless war between Angels and Demons, Yang, ruler of the Kingdom of Heaven, plans to shatter the Nexus Stone. Doing so will imbue a select invited few Angels with enough power to bring Yin queen of the lands of Hell, to her knees. The Angels are given three days to trek thousands of miles and complete a treacherous mountain climb to reach Asgard, where the plan will be put into motion.
Michael, a resourceful young man living in exile with his mother, receives one of these invitations. After surviving an attempt on his life, he happens across a straggler named Anders. Following the boy back to his native town, Michael discovers the town to be under demonic control and seeks to free the populace.
Gabriel, who commands the Thanatonian legion, receives another invitation. Having no desire to return to war, Gabriel passes the invitation to his best operative, Azrael. The crossling reluctantly returns to Heaven. A feud with his twin brother is reignited, and in the course of trying to save lives, Azrael crosses paths with Michael. The two now work together to liberate a small town, jeopardizing their chances of making it to Asgard on time.
Uriel, of Heaven’s army and now one of Heaven’s most wanted fugitives, receives an invitation and promise of immunity if he can complete the journey. Doggedly pursued by the super-powered Angelic police force known as the Seraphim, Uriel accidentally discovers the organization importing demons into Heaven. He has chosen to hunt his pursuers in one last bid to serve the Kingdom faithfully.
Raphael, a veteran of the war since it began, is hand-picked by Yang to lead the new group of Angels. After surviving an assault on the capitol building, Raphael and Yang are relocated to Asgard, where Raphael is reunited with his former mentor, Odin. The two now depart a residential hall high above Asgard to begin preparing for what will occur within the next two days…