"Sometimes, the mission is not worth the cost. You know that, so why are you still doing what he asks?"
"Because if I'm wrong, then all of this is for nothing. Do you understand Tatsu? I left Felicity. I left my children, so if the Monitor can't fix this and if he's not here to help, then all these things I have sacrificed and all the things that so many people have sacrificed will have been for nothing."
Tatsu Yamashiro and Oliver Queen on Mar Novu
"Welcome to Hong Kong" is the second episode of the eighth season of Arrow, and the one-hundred-sixty-second episode overall. It aired on October 22, 2019.


Oliver, Diggle, Laurel, and Tatsu seek out an important person within The Monitor’s plan. Connor has a heart to heart with his brother.[src]



Special appearance by

Guest starring



Preparation ran from July 12 until July 22, 2019. Shooting ran from July 23 until August 2, 2019.[1]


  • The title of this episode references the last line from "Unthinkable" that is said by Amanda Waller after Oliver finds himself in Hong Kong and gets recruited by her.
    • The opening scene of this episode is also very similar to the opening of the last flashback scene in season 2, when Oliver wakes up in Hong Kong.
  • Similarly to the previous episode, this episode also has many references and callbacks to previous episodes, mainly from flashbacks of season 3.
    • When Diggle and Oliver go to a café, the shots have very much resemblance to the ones in "The Calm", where Oliver tries to send an email to his mother. When they get access to A.R.G.U.S. computer, Oliver also says how it would've been nice to know that ten years ago.
    • China White and Alpha-Omega virus return as the main plot in this episode.
    • When arguing about using the Alpha-Omega virus as bait to lure Chien Na Wei, Tatsu reminds Oliver how Maseo made the same gamble, referencing to the events of "Midnight City".
    • Tatsu talked about how Nyssa forced her to give up the Lotus in order to save Thea, which happened in "Unchained".
    • Chien Na Wei talks about their previous fight to Tatsu, that happened in "The Climb" and resulted in Tatsu's loss.
    • Tatsu and Oliver talk about Akio's death that happened in "This Is Your Sword", which is the main reason Tatsu became a vigilante in Hong Kong after her exile from the Crescent Order. Tatsu also reminds Oliver how grief and anger made him torture General Shrieve for hours, referencing what happened in "My Name Is Oliver Queen".
    • Oliver mentions that he and China White have been enemies from the start. China White was the first recurring villain Arrow had, first appearing in "Honor Thy Father".
  • The final scene of the episode reveals that Lyla is working with The Monitor to prevent the Crisis. This is a reference to their relationship in the comics - Lyla being Mar Novu's adopted daughter.
  • Laurel discovering that Earth-2 no longer exists is reminiscent of a similar scene in the original Crisis on Infinite Earths story, where Jay and Wally discover that Earth-3 no longer exists.
  • Both Rila Fukushima and Kelly Hu made their final appearances in this episode for they didn't appear for the duration of the series.




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