In a world where superheroes soar through the sky, follow homicide detectives Christian Walker and Deena Pilgrim on the dirty city streets below. Assigned to the "powers" special cases, they will face the worst their city has to offer. The shocking murder of America's superhero sweetheart, Retro Girl, has the world in mourning. The investigation takes Walker and Pilgrim from the city's seedy underbelly to the gleaming towers that are home to immortal beings. As shocking truths about Retro Girl come to light, Walker finds that to solve this crime, he might have to reveal his own dark secret.