Fringe S5 E93 Through the Looking Glass and What Walter Found There

The last two episodes of Fringe have finally given the show some momentum...I love angry/determined Peter and when he got all up in that observers face my wife and I were totally cheering him on...everyone loves an underdog!  When Peter removed that tech from the observers skull it seemed very irrational and almost out of character for Peter but circumstances being what they are it is believable....I would definately react the same way if I were in his shoes.
Tonights episode looks promising and I can definately see where the writers are going with the parallel situations with Walter and Peter loosing their children.