Fringe: 6:02 AM EST

"6:02 AM EST" is the 20th episode of the third season of the American science fiction drama television series Fringe, and the 63rd episode overall. The narrative follows the activation of the doomsday device by the parallel universe, and the subsequent devastating consequences experienced by our world. David Wilcox, Josh Singer, and Graham Roland co-wrote the episode, while Jeannot Szwarc directed it. Guest star Kevin Corrigan returned as the mysterious Sam Weiss. Actor John Noble and executive producer Jeff Pinkner have referred to "6:02 AM EST" as the start of an "epic trilogy", as it and the following two episodes would be "linked in one continuous story arc". The episode received generally positive reviews; many critics noted its purpose was meant to set the stage for the season finale.