"This is for real. Get your sister and get to the Mountain Place." With those last words from his mother, fifteen year old Liam Harper and his ten year old sister, Lilly embark on a perilous journey of survival. The bombs are coming any minute-and after they fall, Washington DC and the nice suburb that Liam has called home-will be gone. With only minutes to escape, Liam and Lilly and six other kids-some friends, some foes-embark on a desperate mission...