The new episode was pretty good. Allison finally discovers her family's secret. The Alpha finally reveals himself to Scott. We get an explanation of why Derek's sister was killed. We understand the people the Alpha has been killing were in some way linked to the fire that killed his family. And we finally understand that Werewolves can pass on memories by sticking you in the back of the neck with their claws, which means Jackson isn't turning into a werewolf, but he does have some connection to Derek now.
The two big things I really liked in this episode...
The first was the reveal that the Vet Scott works for knows about Werewolves and he helps them out. That was pretty cool, since I knew there was more to him than it seemed.
The second was when Derek was about to kill Jackson, and Scott shows up to stop him. That was pretty bad ass, and well set up and shot.
I will say this though... how did Allison know that other girl made out with Scott? Did I miss something? She never seemed to have a clue about it before, but now all of a sudden she knows? That was weird. Also, Scott got pretty beat up this episode. Clawed in the neck, tazed, and shot, all over the course of a single day, lol.
Looking forward to the finale. Really want to see where they go with this.
Edit: Oh yeah, and the Alpha's reference to basketball was great. A nice nod to the original movies. Not as good as "I want a bottle of jack" throwback a few episodes earlier, but still nice.