Ok, now let's get down to the curious part: Sam.
In the final scene with the boys and the car down by the river, at one point you see a fly buzz around Sam and fly off. There's even the sound of it on the audio. Now the last time we saw and heard something like that was way back in S2's "Children Shouldn't Play With Dead Things" when the guys went to go visit Neal and ask if he needed any counseling. In that scene there was also a visible fly and the sound on the audio track. In that eppy it was because Neal was hiding zombie Angela in his basement.
So what does this mean about Sam????
You gotta wonder. Back from the dead mysteriously, acting strange. Granted, Angela was all pasty white and dead looking, BUT...as we've already seen this season, creatures are not acting like they normally would. Could it be Sam is a zombie or something similar to the un-dead?
A - I'm on the right track with this crazy theory.
B - The show is screwing with our heads and put it in there on purpose to throw us off track.
C - I'm just totally out of my mind and I'm seeing/hearing things.
Honestly, my theories are practically never right where this show is concerned, so I wouldn't put a lot of stock into this idea, but it made me think. We know something's off with Sam, we just don't know what, how, or why. I just hope the show will eventually answer the questions.