This episode really brings on the Fringe mystery. The strange observer, is he even human? Father and son relationship, hints on the past. Why does the observer get involved and saves someone, only for the mysterious cylinder?What is the cylinder? How could Peter know something he didn't? And John, how can he call but not call and then show up? What did Massive Dynamic do to him? Is Olivia going nuts of stress?
Don't get me wrong, I loved the episode but it left me unsatisfied, no answers only questions. I would go mad if I didn't already have whole season on dvd. Now the next one. Yey!