To be honest, I was a little disappointed with the New episode after this long wait. I didn't really get why they would revive an old subplot from several seasons ago and focus on those characters when there are only a few episodes of the show left. Don't get me wrong, I liked kaya and her actress who plays both roles really well, but I would rather have seen more of the main characters and their relationships and how they deal with the fact that Jack is back.
Review of Galaxy Brain
