Charlotte Marie Jenner is the daughter of the only surviving doctor at the CDC in Atlanta. When a group comes banging on the door Charlotte convinces her dad to let them in and give them a chance. Once the group is inside their eyes are opened by what Dr. Jenner has to say about the virus that has brought on the apocalypse.
Charlotte can't help but admire the man that is different from her in every way imaginable, she is intrigued by the bad boy that has entered their world. That night they do nothing but talk and she immediately feels a connection to this man in front of her.
When the clock counts down the zero the truth about the end of the CDC is revealed, no one is getting out. Dr Jenner locks everyone in to meet their end. Charlotte tries to convince her dad to let them leave, that it isn't fair, it isn't his choice how they die. When he finally lets everyone go, Charlotte wants to stay, her dad is all she has left.
"It's too dangerous out here, you said so yourself."
"I will never leave your side, I will always be there to keep you safe."
Charlotte takes the chance.....but can she live with the consequences?