Watch the fourth episode of Teen Wolf entitled “Magic Bullet” wherein a new kind of hunter is hunting the werewolves threatening their existence. That includes Scott and Derek. It seems that the so called “magic bullet” is working effectively and can really cause damage to the creature of the dark. This is the reason why Derek tries to seek the alliance to Scott to at least try to join hands and increase their power and survive this threat.
For more details on what happened to the hunter, to Derek and Scott, just watch Teen wolf season 1 episode 4 online replay now and see every single moments of the 2011 Teen Wolf series.