Originally aired in the United States on ABC on March 18, 2010, along with the second half of the episode, Revelation Zero (Part 2).
Mark and Demetri return from Hong Kong, and Wedeck starts interrogating Mark about the events that happened, while Janis and Vreede interrogate Olivia, who's recently witnessed the abduction of Lloyd Simcoe at the hospital by two EMTs' who go over the names of Wheeler and Quarny.
Simon is in the room with them, because he's known Lloyd Simcoe since they started on the "Proton-Driven Plasma Wakefield Acceleration Project", which is believed to be the cause of the blackout.
Demetri and Marshall go check it out, and find the bodies of the real ambulance drivers in one of the abandoned train compartments.
After identifying the dead bodies, they decide to trace one of the guys cell phones, believing it could help them find the ambulance vehicle, which would lead them to where Lloyd and possibly Simon are at.
Lloyd finds a menu to the "Crown Cheese Steak" in the basement, and with the blood from his wounds, writes "HELP US" on it, and holds it outside the window so someone could see it, but it gets blown away.
They're then confronted by Flosso (who was previously seen in The Gift where he killed a guy for not bringing back all seven rings of some sort).
Nicole leaves her mother with her sister Paige, and goes to the hospital, where she sees a staff member who she believes to be the man who kills her in her vision.
The nurse, who knows that Nicole is worried and scared, tells her to go to a meeting called "Sanctuary", where a man explains to people how the flashforwards were a good thing.
[2] Entertainment Weekly pointed out how well they recognize the philosophical and spiritual thematic possibilities within their sci-fi premise and that they actually have characters talk about said themes.
Club gave this episode a B−, stating that "Monaghan's Simon was probably the show's most useless character before tonight.