Picking up after the events of Fear State: Alpha, follow Sean Mahoney, a.k.a. Peacekeeper-01, in the wake of his exposure to highly potent Fear Toxin at the hands of the Scarecrow! Now, dosed with terror and facing a lifetime of fear and insecurity, Mahoney has found himself frantically reflecting on his past as a GCPD officer, and then as a prison guard at Arkham Asylum-all while desperately attempting to keep his mind from fracturing. Will Peacekeeper-01 give into fear-or become terror incarnate?