- "My Mom and my best friend's dad are involved in a conspiracy that could have dire consequences."
- —Oliver has discovered who the people behind The Undertaking really are.
With the Undertaking days away, Malcolm dons his Dark Archer costume and black hood to conclude business with seismologist Dr. Brion Markov and his team. Oliver and Moira entertain a number of surprise and mostly unwelcome visitors. Hooded confrontations at home and the Merlyn Global Group reveal dark secrets. Meanwhile, Roy and Thea are still looking out for The Hood. Laurel makes a decision after Tommy's revelation. In a flashback to the island, Oliver, Slade, and Shado, struggle to prevent Edward from shooting a Ferris Air jet out of the sky.
Oliver wants to get information about the undertaking and decided to get some information from his mom, Felicity told him it's a bad idea as the last time he got shot because of it. Oliver told them it will be a friendly mother-and-son chat. Laurel was at the Verdant on Oliver way out, they had a little chat about the love triangles. Oliver leaves the conversation saying Walter is coming back and he needs to go back.
Later, Walter does come back and the family express their relief. Walter says that after the events, he needed rest, and goes to his room. Thea comments that Walter hasn't been himself, to which Oliver replies that he had gone through a lot. Thea expresses that she is sick of going through a lot.
Flashbacks occur to when on Lian Yu when the trio is bought back to Edward's base. Meanwhile, Roy drove Thea in a "borrowed" car and spotted outside Unidac Industries while the police are investigating.
Oliver and John devise a plan where John dresses as The Hood and kidnaps Oliver and Moira in an attempt to uncover the truth about the Undertaking.
Scene flashes back while Edward reveals to the trio that he plans to cripple the Chinese economy by blowing up an aircraft going into China.
The masquerade works on Moira, who tells "The Hood" what she knows of Malcolm's Undertaking.
Flashback scene Yao Fei sneakily hands Oliver a knife to help them escape and agrees on helping Edward with his "job", it was then hinted the mastermind of this was a woman behind a desk.
Back to the present, due to being unable to hack into Merlyn Global, Felicity states unless she can plug into the mainframe or else, it's highly impossible to get the information they need. Oliver then tells them they shall do it. Oliver's Team starts infiltrating the building. Although there was a staff member who almost got into the way when Oliver and Felicity were in the lift. Oliver hits the man's documents out of the lift (epic). They successfully got on to the 25th floor via grappling hook and the plan goes on.
Oliver has a meeting with Tommy, where he tells him to return to Laurel. Felicity barely retrieves the information they need in time. Diggle, watching from the security station, calls for Oliver to help extract Felicity, but he is stalled when he runs into Malcolm Merlyn, who offers a friendly chat while escorting him downstairs.
Meanwhile, Felicity is caught by a security guard, but rescued in the nick of time by Diggle, who accuses her of being one of "Merlyn Junior's bimboes." The other guard lets Diggle take her out while Felicity protests how much Tommy loves her, etc.
Down in the lobby, Oliver then runs into Thea, who is there with Roy trying to trace activities of The Hood. Oliver warns them that the Vigilante is a dangerous psychopath that they should keep away from. The two return to Roy's house, but he is not deterred from his search.
At the Queen mansion, Walter reveals that he knew that Moira was part of his kidnapping and gives her divorce papers as a result.
At the police station, Quentin Lance is informed the tech guy couldn't hack into Merlyn Global, but he did trace a prior hacking attempt to Felicity Smoak at Queen Consolidated.
Though Oliver had convinced Tommy to get back together with Laurel, when he learns that he could give up being the Hood if he stops the Undertaking, Oliver decides to reconcile with Laurel himself. Later, Tommy outside Laurel's apartment, witnesses Oliver and Laurel becoming physically intimate from the window.
In a flashback, Edward shot Yao Fei Gulong, after forcing him to take credit for the attacks via video recording being the scapegoat.
That night, John goes after the device, but Malcolm learns of the system hack and has the device moved. The Hood attempts to kill Malcolm, who reveals to the Hood that he is the other archer, the two fight and Malcolm gets the upper hand, discovering Oliver's secret, however he seems to express regret for beating him up after unmasking him.
Preparation ran from March 18 until March 26, 2013. Shooting ran from March 27 until April 8, 2013.
- This is the first time that the twenty-second episode of a season of Arrow shares the same name of a Bruce Springsteen song, the 1978 song (and album) "Darkness on the Edge of Town". This pattern is continued in to later seasons; season 2's "Streets of Fire", season 3's "This Is Your Sword" season 4's "Lost in the Flood", and season 5's "Missing".
- This is the last appearance of Byron Mann as Yao Fei until Season 5's Missing, 4 years after this episode.
- The jet liner that Edward Fyers wants to take down belongs to Ferris Airlines. In the DC comics, Carol Ferris is the on/off girlfriend of the Green Lantern, Hal Jordan, and the owner of Ferris Airlines.
- This episode marks the 5th main character to discover Oliver is The Hood. The others being Diggle, Helena, Felicity, and Tommy. Malcolm is also the first main antagonist to discover his secret identity.
- When discussing the data that Felicity downloaded from the Merlyn mainframe, she says "... there's at least a teraflop of data to go through". As an I.T. expert, Felicity would not have made this mistake; a teraflop is a measurement of processing speed not data quantity (terabyte).
|Arrow season 1|
|"Pilot" • "Honor Thy Father" • "Lone Gunmen" • "An Innocent Man" • "Damaged" • "Legacies" • "Muse of Fire" • "Vendetta" • "Year's End" • "Burned" • "Trust but Verify" • "Vertigo" • "Betrayal" • "The Odyssey" • "Dodger" • "Dead to Rights" • "The Huntress Returns" • "Salvation" • "Unfinished Business" • "Home Invasion" • "The Undertaking" • "Darkness on the Edge of Town" • "Sacrifice"|