Walker and Pilgrim investigate the death of Olympia, a renowned superhero who is found dead in a sleazy apartment with no clothing and no sign of injury. Information emerges about Olympia's controversial sex life, which may have played a role in his death.

After Calista tries to find her powers in a more drastic way, she meets RetroGirl whom Christian knows more about than he's letting on. Meanwhile his partner makes her first official Powers arrest. After a while Christian becomes more suspicious about Johnny Royalle's death, and visits Wolf to seek his help.

As a lethal powers-enhancing drug is unleashed on the public, Detectives Walker and Pilgrim seek out the criminal mastermind behind it with the help of iconic Power, Retro Girl. As clues come to light, Walker considers the possibility that Wolfe, his dangerous former mentor turned nemesis, might have the answers he seeks.

Johnny realizes that's his new drug is dangerous, but is it too late to stop Wolf before all hell breaks loose?

As Retro Girl, Zora and the heroes of the world rush to stop the escape of Wolfe from The Shaft, Walker realizes he must face him alone, the inevitable clash between mentor and disciple that will unravel the deep-seated history between them.

In the wake of the battle to stop Wolfe, the Powers division gathers to mourn the loss of their fellow officers, while Walker seeks answers about his own future and the possibility of becoming Diamond once again. After seeing the uncertain and dangerous side effects of Sway first-hand Johnny Royalle begins unsavory experiments on known subjects of the drug.