Although this episode had the usual JJ Abrams fringy touch to it, I wasn't too thrilled with the mind control concept. It's like the most overused theme in almost all Sci-fi', Matt Parkman in Heroes for instance.
I actually get why ratings have taken a nosedive this season. As a matter of fact, this whole one case a day strategy has waned my interest. It's about time they took care of the parallel universe track, and stop writing stuff about kids controlling people after popping some pills. Not to steal the moment from this story, I must admit the ending was pretty cool. Massive Dynamics dark side has been revealed once again. No matter how open and helpful they seem to Dunham and the Fringe division, they sure do have the most bizarre of secrets.