The biggest mystery of the episode is the mysterious man with an X on his t-shirt that 'kills' Walter in the dreamscape. Peter brings him up to Olivia, who calmly replies that, while she has never met the man, she knows who Peter is talking about, and he will murder her. This is something Olivia has apparently thought a lot about, but remains unworried. What is up with that?
As Bell, Peter, and Walter flee, they become cartoons, a really neat element to add to this episode. While the animated versions are not exact replicas, they are recognizable enough. Perhaps it is done because Leonard Nimoy did not wish to guest star, though he did lend his voice to the animated Bell. No matter what inspired the cartoon, it is very cool.
Extremely welcome is a small subplot where Agent Broyles (Lance Reddick) accidentally ingests LSD, too, and must be taken care of by Astrid (Jasika Nicole). While the two rarely get meaty stories, it is exceedingly nice to have them in a few fun scenes together. Reddick masters the comedy to be had from the scenario, examining liquorice. He also unleashes some serious dark demons in his rant about death. Is it inspired by seeing the hacked up body of the alternate Broyles, sent over from the other side months ago? Either way, these moments beg for more Broyles and Astrid Fringe stories in the future.
"6:02 AM EST" Aired April 22, 2011
Olivia and Peter are finally together! After everything that separates them, from Olivia being replaced by Fauxlivia, to William Bell inhabiting Olivia's body, they finally get to just be a couple, happily. This, of course, does not last long. The happy part, not the together part. Hopefully that will continue for seasons to come.
Devastating events begin occurring in the Eastern United States, and the mysterious doomsday device that has only responded to Peter before suddenly comes on at 6:02 AM EST, even though Peter is hundreds of miles away. As Walter is soon able to surmise, it is responding to the fact that its counterpart in the alternate universe is now running. What he doesn't know is that Walternate has used the DNA of Peter and Fauxlivia's child, with Fauxlivia's elements stripped out, to activate the device. The machine thinks Peter is inside it.