Leanna is the last to leave. She can hear the zombies falling onto the floor as they crawl in through the kitchen window. The cannibals don't know that the family is near the back entrance, so Leanna has a little time left before she has to leave the house. She closes her eyes and prays to God that her family will be all right. She prays that they'll find her mother and that whatever has happened to the human race to make them this way will end soon. She prays that, if they don't find her mother, her mother will find them.
But, most of all, she prays that she's just dreaming. That zombies aren't real. That the zombie apocalypse isn't currently taking place. That she isn't about to follow her father--who, just ten minutes ago, was about to be zombie chow--and her sister--who, just fifteen minutes ago, was fighting with Leanna over attending her party--into their backyard where they're going to have to try and find a way around a horde of people who want to eat their flesh. However, when she opens her eyes, she sees that the zombies from the kitchen have made it to the living room and are currently feasting on the leftovers of Damion. They hover near the grocery bags that had flown from her father's hands when he got tackled by the clerk, inspecting them as if they can smell that they were recently held by a living human. This is what forces her to realize that she isn't having a dream. If a zombie gets to her, she isn't going to simply wake up because of a near-death experience. In fact, she won't wake up at all. She'll just be dead.
With that train of thought, Leanna finds herself exiting her home, quietly shutting the door behind her so she doesn't alert the zombies to her location. There, underneath the beautiful stars and clear night sky, Leanna joins her father and her sister, and, together, they embark on the unknown.