Ben Cash (Viggo Mortensen), his wife Leslie and their six children live deep in the wilderness of Washington state. Isolated from society, Ben and Leslie devote their existence to raising their kids -- educating them to think critically, training them to be physically fit and athletic, guiding them in the wild without technology and demonstrating the beauty of co-existing with nature. When Leslie dies suddenly, Ben must take his sheltered offspring into the outside world for the first time.