Season 1: Derek lost his family. Found his dead sister’s half body.
Season 2: Lets make Derek an Alpha but wait a bad one!
Season 3: Lets kill off Derek’s pack! Everybody blames him. Oh and he lost his alpha power too HAHA
Season 4: You know what? No more werewolf power for you, Derek cause your life suck and all. We think you’re better off being human.