The world is turned upside down by the seemingly impossible and horrifying murder of retro girl. Pressure is on the powers division to bring the perpetrator to Justice, but when Walker is pulled off the case for being too close to the victim, and may be a suspect himself, he must go off-the-books to avenge the woman he loved.

On the day of Retro Girl's funeral, Detectives Walker and Pilgrim prepare to combat violence between rival gangs The Quantums and The Hacks. Hoping to fill her place, Calista makes her public debut as New Retro Girl. Still reeling from Retro Girl's death, and with her murder officially closed, Walker doggedly pursues a suspect he believes to be the real murderer.

New evidence suggests the main suspect and Retro Girl's murder may be a rare power gone rogue. With contempt between the Powers Division and the FBI escalating to a breaking point, Walker attempts to gain Agent Lange's trust.

In the aftermath of a catastrophic political scandal, Walker and Pilgrim investigate a high-priority suspect and uncover shocking government connections. Meanwhile Triphammer is determined to create a new Powers team, recruiting Zora and a new protégé, Sgt. Tiberio Martinez.

As Calista is about to be crowned the newest shining star of the Powers universe by Conrad Moody III, CEO of the most powerful Powers merchandising company on the planet, a valuable member of the community is murdered. With Walker and Pilgrim suspended, they are powerless to stop the city from unraveling around them.