Teen Wolf Season 1 Episode 4 : Magic Bullet

A woman driving her car at night is followed by a werewolf that tries to kill her. The woman grabs her gun and shoots at it. Derek is in the shadows, trying to follow the werewolf. As he jumps across the roof, he is shot in the arm with a bullet containing wolfsbane by the woman and falls in pain. Scott, awakened by howls, overhears Allison's dad and the woman, who turns out to be Allison's aunt Kate, saying Derek has 48 hours to live. The nex...