Unexpected

Charlotte Jones is your typical women. She goes out with friends on Friday's. Works at a library and loves it. She has had very few relationships because of her older brother Charlie, he's only two minutes older but acts like her dad she never had. Their dad died in the army. Their mom died when they were born. They've been thrown around foster care until they were to old to be adopted. They're now 21 and living life to the fullest. Charlie Jones is the more responsible one out of the two. He has a steady girlfriend Olivia and they're talking about getting married after she finishes college. When something completely changes Charlotte and Charlie's life how will they handle it?