Esme has taken command of Class Zero, forging a growing empire of survivors, ships, and secrets from the ashes of Jamie’s legacy. When Brooke’s search for Pippa leads her into Esme’s grasp, a new wave of recruits joins the brutal world of training, quarantine, and retribution.
From the depths of the ocean aboard the ancient vessel Atlantis to interstellar refugees arriving via battleship fleet, the group’s power expands — but so do the threats. Dark Knights, engineered Inquisitors, and a deadly virus that turns the dead into monsters escalate the war. Meanwhile, Sarah unearths Jamie’s darkest contracts, exposing a hidden Church program kidnapping students for sinister genetic experiments known as the Lampstand.

Personal stakes shatter the team: Sky arrives carrying Jamie’s complicated past, Cleo’s health falters, and a ruthless hospital raid leaves Sky critically wounded and Cleo abducted by vengeful family forces. Grief-stricken yet unrelenting, Esme must hunt her enemies across land, sea, and sky while holding her fractured family together.

In a world of corrupt institutions, ancient powers, and monstrous conspiracies, leadership demands sacrifice — and Esme is ready to pay the price.