"The world is coming apart, just like Star City. I mean, it is worse than it has ever been."
"That's because Darhk's been spending the past year trying to kill it."
"Then why is he giving these people more hope than we ever could?
Oliver Queen and John Diggle on the goal of Genesis
"Lost in the Flood" is the twenty-second episode of the fourth season of Arrow, and the ninety-first episode overall. It aired on May 18, 2016.


Following the shocking events in the previous episode, Oliver and Diggle race to rescue Thea, while Felicity, Curtis and Noah join together to stop Darhk.[1]


Preparation ran from March 18 until March 29, 2016, with a break on March 25, 2016 for Good Friday. Shooting ran from March 30 until April 8, 2016.[2]


  • Damien Darhk refers to the world going "Dr. Strangelove", referencing the 1964 film which ends with the world entering a nuclear apocalypse.
  • Felicity states to Curtis and Noah that the world will have a "sequel to WarGames" if they don't hack Rubicon and stop Genesis. This is a reference to 1983 film WarGames, where the young hacker David Lightman tries to stop supercomputer WOPR from launching nuclear missiles.
    • Curtis also mentions its 2008 sequel, WarGames: The Dead Code, which was released on DVD and, in contrast to original, was panned by critics.
  • When Oliver and John enter Tevat Noah, John compared it to Mount Weather, a governmental facility which was built by FEMA during the Cold War.
  • This episode follows the pattern of the penultimate episode of a season being named after a Bruce Springsteen song, in this case after the 1973 song "Lost in the Flood".



Sneak peeks


  1. Team "Arrow" Gains an Unlikely Ally in "Lost in the Flood" Synopsis - Comic Book Resources
  2. Marc Guggenheim (@mguggenheim) - Twitter

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