Jeremiah and Kurdy uncover other tribes of young adults whose prolonged and unguided adolescence has divided them into distinct rival social groups. After realizing that his father may still be alive, Jeremiah is determined to bring some peace among these groups and find out who else has survived. (Part 1 of 2)

Jeremiah and Kurdy uncover other tribes of young adults whose prolonged and unguided adolescence has divided them into distinct rival social groups. After realizing that his father may still be alive, Jeremiah is determined to bring some peace among these groups and find out who else has survived. (Part 2 of 2)

Jeremiah and Kurdy find one of Simon's contacts who tells them about the Burners, an unknown group randomly torching whole towns. While investigating, Jeremiah meets Claire who desires to explore the rest of the world across the sea. In a blazing confrontation with the Burners, Jeremiah comes one step closer to his own dream, finding Valhalla Sector.

Jeremiah and Kurdy are sent by Thunder Mountain on a mission that not only will test them to full measure, but, has the potential to forever severe any connection between them. In Cranston, Jeremiah and Kurdy discover that not all of the "old world" ideologies were extinguished after the big death. The need for absolute power at any cost survived.

Jeremiah and Kurdy meet John, a man living as the comic book hero "Captain Iron." Meanwhile, Elizabeth discovers David Quijana's secret: a "Typhoid Mary" who could single-handedly bring back the Big Death.

Jeremiah and Kurdy are skeptical when they meet Dr. Reese, a fraud who grew up in the shadow of his father, a renowned surgeon. When Reese's bag of medical supplies is stolen, it becomes Jeremiah's mission to get it back to save the life of a pregnant woman.