Okay so glad to know that the Nina part of the story line was explained.  Yay!  Okay so still confused: WHICH TIMELINE IS THIS??  Still I love this show, not gonna lie.  I loved this episode, it had so many curve balls!  This was such a mind blowing episode.  The fact that Peter went into “September’s” mind.  Now we know what the Observers are!! FINALLY!!  Great episode.  Oh my god I have to much love for this show.  This was such a mind blowing and gut wrenching episode!  I loved it!  I love this show and I really hope it gets renewed for another season.  It was just such a good episode.  Awesome episode.  Thursdays @ 9PM EST on FOX.