This is Book Three of The Districts 

Nick gains access to the store where Jenna is being held. They leave and head north in an attempt to track down Anthony and make him pay for what he did. 

Wheeler and his four men assault the District Four bunker. The mission comes with a heavy price to Wheeler and everyone else inside the bunker. 

Sutherland does whatever it takes to make his way back to the Air Force base. 

What little is left of the United States is crumbling as people scramble for the last of the supplies no matter the cost.