The main conflict in the book is the flare and the PFC (Post flares coalition). This scene shows when the town is attacked by the PFC and infected with the flare.
Mark and Alec take down a berg and when they get back they see that Darnell is going insane and saying his head hurts and kills himself. This is when the characters first relize what they are facing.
Misty stays with Darnell and dies, so the rest of the group (Mark, Alec, Trina, and Lana) head into the forest. They see The Toad following them, and relise he is sick so Alec kills him.
After walking through the woods for a while they find a girl named Deedee. Deedee has a dart in her arm but is not sick like the others, they think she's immune. Alec suggests they take her to Asheville to use the flat trans. Mark, Trina, Lana, and Alec realize the have the flare.
Are you sick?
Mark and Alec save Trina, Lana, and Deedee after they get kidnapped but Lana got stabbed so Alec shoots her to put her out of her misery. Now they start flying to Asheville to get Deedee through the flat trans.
In the end, the group gets Deedee to the flat trans and Alec flys the berg into the building killing them all but preventing cranks following Deedee. Deedee is found by the people who create WICKED 13 years before the maze trials.