The 18-year-old Caden Richard (Lucas Till) was originally an ordinary high school student. He played as the main player on the school football team, had excellent academic performance, and had a school beauty girlfriend. He used to be like a winner in life living in a dream. Until one day everything changed, Caden's academic performance declined, and he also fought against his team opponent who collided with him. After that, he bit his girlfriend in a state of confusion, and killed his parents in a state of unconsciousness. Caden finally discovered that he had the ability to transform into a werewolf. In order to avoid the police's pursuit, he had no courage to commit suicide and could only flee. After many twists and turns, he finally came to a small town full of werewolves, and found a job to make a living with the help of the old man John (Stephen McHattie). The terrifying werewolf Connor (Jason Momoa) covered the sky with one hand, and Caden's inadvertent arrival broke the precarious balance between werewolves and humans...