When the apocalypse hit and Caitlin Meadows found herself surviving on the run with Jack Booker, she never expected they'd last a week without tearing each other's heads off, let alone that they'd fall for one another. But now she can't imagine a life without him, and she's willing to do whatever it takes to keep her lover alive in a zombie infested world. In an attempt to find more of their friends, Caitlin and Booker must traverse a bleak landscape in search of a secretive group of survivors who may hold the answers they need. But threats of the undead, desperate scavengers, and illness aren't the only dangers in this new, brutal reality. The clock is ticking. Will their time run out?