This story is set in the United States in the near future following a major national disaster. The tale begins with few details known to the reader as we follow a patient in a psychiatric hospital, and to a lesser extent the medical staff. The patient makes an unusually quick recovery from the mysterious treatment to which he is exposed, and becomes more and more obsessed with finding out what exactly is going on. I won't give any more details as it may spoil the various revelations throughout the book, but I can say that the majority of the book follows the hero as he tries to determine the truth.
The story is well written and moves at a good pace. I wanted to keep reading to find out what the 'big secret' held from the hero is, and I wasn't disappointed with the ending. Although I found some of the details slightly unrealistic, this is an interesting variant on the usual stories within the post-apocalyptic genre and I would recommend it for that reason.