In a time of uncertainty when society is on the brink of downfall due to a plague that affects positive and negative blood types differently, Mae Elwood is left alone in a fight for survival. That is, until she meets a stranger who could change everything for her by helping her discover a newfound hope for finding her loved ones. With this, she discovers a possibility for saving humanity from the blood virus as well, the only trick is surviving those who want to take this cure from her. She must discover the true meaning of trust, love, and sacrifice if she is going to make it in this new world.