Scott (Tyler Posey) is just an ordinary high school student. Once he was bitten by a werewolf in the forest and turned into a werewolf. Only his good friend Stiles (Dylan O'Brien) and another werewolf Derek (Tyler Hoechlin) know the truth. The new transfer student Allison (Crystal Reed) asked Scott for help because she injured a puppy, and the two developed a good impression and became lovers. But whenever Scott and Allison were intimate, they could not suppress their wolf nature. Scott was afraid to let Allison know the truth and was reluctant to leave her. By chance, Scott discovered that Allison's father Argent (JR. Bonne JRBourne) was actually a hunter who specialized in shooting werewolves. Can Scott control his wolf nature? Will his relationship with Allison be affected? And there seem to be other werewolves in the dark spying on their lives...