Nadine and Harold's dark intentions continue to take shape. Meanwhile, the Committee's spies entrench themselves in New Vegas, where Flagg is building his own society, where officially-sanctioned sin and debauchery disguises a ruthlessly-enforced order. Back in Boulder, Frannie hatches a plan to confirm her suspicions of Harold while Mother Abagail seeks divine council.

While all of Boulder fears for Mother Abagail's safety, Stu organizes search parties to ensure her return, presenting an opportunity for Harold and Nadine. In New Vegas, Flagg recruits a dangerous new follower.

After tragedy strikes the Boulder Free Zone, Mother Abagail tasks members of her Committee with a dangerous mission. Meanwhile, Harold and Nadine begin their journey to New Vegas to unite with Flagg and claim their reward.

Risking everything, the Boulder travelers face off with Flagg's followers in New Vegas, among them a very different - and pregnant - Nadine.