 Following the death of his father, Tyler Mason left his hometown and moved to Los Angeles. Years later, Tyler returns home and is ready to pick-up where he left off, only things are not exactly as Tyler remembers them. Meanwhile, Holly Garner struggles with the loss of her father and the impact it has had on her Sister and Mother. While trying to break free from the confinements of small town living, Holly begins to notice a change in behavior with the people around her. Soon Tyler and Holly realize that their town is being taken over. People are not only changing, but are actually being replaced. Not knowing whom to trust. Tyler and Holly must find a way to escape and warn the rest of world or suffer the same fate. A story told through two perspectives. Two people. One invasion. Who do you believe? Who will survive?