For the Supergirl episode, see "Dangerous Liaisons"
"For the past four years, I have watched you do whatever you had to, whatever it took to stop the people threatening this city. How can you stand there and not ask me to do the same thing?"
Felicity Smoak to Oliver Queen on her mission for Helix
"Dangerous Liaisons" is the nineteenth episode of the fifth season of Arrow, and the one-hundred-eleventh episode overall. It aired on April 26, 2017.


Oliver, Team Arrow, A.R.G.U.S and the SCPD kick off a citywide manhunt for Adrian Chase. Helix tells Felicity they have a way to find Chase but they will need something big, and illegal, from her in return.[1]




Preparation ran from February 10 until February 21, 2017, with a break on February 13 for Family Day. Shooting ran from February 22 until March 3, 2017.[2]


  • The name of this episode comes from the translated title to the French novel Les Liaisons Dangereuses.
  • When Team Arrow and the police enter the arcade of video game automats, one of them is a light gun shooter game called Maximum Force from 1997.
  • This is the only episode of Arrow to not reference a bow and arrow at all.
    • This is also one of the few episodes to not feature a flashback storyline in any form.
  • This episode introduces Cayden James (unseen), who will play a major role in Season 6.
  • John tells Lyla that Felicity has "gone over to the dark side". This is a reference to Star Wars.


  1. Arrow Spoilers: "Dangerous Liaisons" Description - GreenArrowTV
  2. Marc Guggenheim (@mguggenheim) - Twitter
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