Kublek puts Hope's commitment to the new world order to the test, leaving her to make it on her own inside an infested city. Reunited with Will and his new group, Iris and Felix learn that the Civic Republic is not as benevolent as they were led to believe.
While Hope acclimates to her father's world inside the Civic Republic's research facility, Silas is initiated into his own new home. Iris, Felix, and Will try to avoid discovery by the CRM, putting their new community at risk.
Elton and Percy take different approaches to survival when they come across a brother and sister on the road. Hope continues to struggle with daily life in the Civic Republic, separated from the rest of her family.
Hope and Huck arrive at the community that has taken in Iris and Felix, hoping to convince them to return with them to the CR. Elsewhere Silas is hazed by the others at the outpost, and Percy seeks revenge.
Iris, Elton, and Percy are reunited with Silas, who they hope will help them escape the CRM's protection zone. Hope tries to convince her father that it is time to leave the research facility.
After the group makes an eleventh-hour decision to stay and search for answers to the Civic Republic's agenda, Leo begins to suspect Lyla's complicity. Huck meets an old friend, who she knows might have been sent to investigate her.
Leo and his family are in the cross-hairs after a research vial is found missing. As Jadis tightens the screws on Leo, Lyla offers Iris and Hope a deal ... if they can trust her.
Will returns to the Perimeter colony with news of Dev's fate. While Leo tries to recruit the RF scientists into an escape plan, Jadis goes after Leo, forcing Huck to put a dangerous plan into motion.
As Elton and Silas try to save Dennis's life, Leo and the others inside the research facility issue an ultimatum to Jadis and the CRM – while secretly plotting to take down the operation from within.
While the kids make their way across the countryside Felix tangles with the CRM forces who are trying to stop the group from escaping, and Huck faces off against Jadis.
