John Constantine sneaks into hell and kidnaps the fallen angel Neron's bride, disrupting his plans for world domination and enraging him. With Wonder Woman and Justice League Dark members Swamp Thing, Dr. Fate, Black Orchid, and Ragman, Constantine must keep Neron and his demonic hordes from breaching the walls of a magical fortress they've rebuilt to prevent the dark angel from sacrificing his bride and bringing forth hell on Earth.