If you haven't read Feed yet, there are spoilers ahead, so I'd encourage you to read it before you learn too much about the sequel.
Sure, Shaun Mason survived the devastation that occurred about a year ago. His sister Georgia didn't. Neither did several of his friends and coworkers. But every day is a struggle. And though his sister is gone physically, she has moved into his head to help him figure things out when he needs her.
Crazy? Sure. But having dealt with the death of a good friend, I can identify with moments where you swear you can hear that voice as clear as if the person was sitting right next to you. Shaun talks out loud to his sister and his coworkers and friends think he's lost it, but know (or hope) he'll work through it eventually.
When Dr. Kelly Connolly shows up at Shaun's home and the headquarters for their blogging empire for "After the End Times" in Oakland, he knows it's not a good sign. The more Kelly talks about what happened at the CDC, the more that feeling grows. And the more people try to kill him and his friends as they ferret out the truth, he knows he has to get to the bottom of it. Ultimately the truth about who was behind his sister's death is the only thing that matters.
Grant takes the political intrigue of Feed and ratchets it up to 11 to a stunning conclusion in Deadline. And we can only hope that the next book of the trilogy — Blackout -- serves to answer some of the questions asked in the first two books. The only bad part is we have to wait a while for those answers when Blackout is released in May 2012. I'm not sure I can wait another year!!