After escaping the relentless posse deployed from post-grid Chicago, the Family struggles to rebuild in the heavy handed, well- armed Rivertown. But things take a turn for the worse when assassins ambush the River Patrol and disease breaks out, crippling their defenses. As the damage mounts, Hunter and company are incited to murderous revenge in a race against time after her enemies execute a daring raid. Book Two of the Post Grid Thriller-The River Survival Series