In the aftermath of Angelina unleashing a devastating volcanic fissure, the passengers face severe scrutiny in a world fueled by 828er hate, no longer free to solve their own Callings without constant supervision by the unscrupulous 828 Registry. A mysterious accident delivers ominous warnings on a biblical scale that will further jeopardize the livelihood of all the passengers. As Michaela grieves the loss of her beloved husband Zeke, she must team up with her old flame Jared to find new methods to investigate Callings. Meanwhile, Ben and Saanvi attempt to collaborate with the Registry authorities, which only leads to dire results for the passengers. Miraculously, a mythological event reactivates Cal’s sapphire-laden dragon scar, offering a glimmer of hope for the 828ers to survive the rapidly approaching Death Date. But Angelina’s nefarious sapphire powers continue to wreak havoc, leading to a struggle between good and evil down to their very last day in this most terrifying, suspenseful and joyous chapter of the Manifest story.