- For other uses of the term "Lian Yu", see Lian Yu (disambiguation).
- "You won. Your son has his father back, and he learned exactly who his father was. Just like you learned who your father was right here... on these very same waters."
"William's younger than you were, so he's gonna be fine, you know? And you have each other."
- "What are you saying?"
"Which is good. Oliver, that's good. Because it's gonna be lonely... without Mom and Felicity."
- —Adrian Chase's last words to Oliver Queen before his suicide
"Lian Yu" is the twenty-third and final episode of the fifth season of , and the one-hundred-fifteenth episode overall. It aired on May 24, 2017.
|The battle between Oliver and Adrian Chase culminates in a final epic battle on Lian Yu. After recent events, Oliver decides to recruit a group of unlikely allies — Slade, Nyssa, and Merlyn — to defeat Chase. However, Chase has his own army – Black Siren, Evelyn Sharp and Talia al Ghul — and the forces collide in an explosive season finale.|
The scene opens with Oliver discharging Slade and taking out the ARGUS monitor doled out to keep him in his cell. Slade says that the Mirakuru that made him crazy has exhausted and that everything feels like an awful dream. Slade inquires as to why Oliver didn't slaughter him for murdering his mom, however Oliver gives Slade a glimmer drive containing information on Slade's child, Joe. Oliver says he needs to discover both their children and gives Deathstroke his old covering.
Oliver brings his newcomers Slade and DIGGER HARKNESS (otherwise known as Captain Boomerang) to get together with Nyssa and Malcolm. A RPG flies in from the woodland and crushes Oliver's plane, destroying their lone ride home.
In a flashback, Kovar finds that Oliver has gotten away from his jail and requests his men to discover him. Oliver makes a straight shot to his trunk in the forested areas, however Kovar's men discover him and corner him.
In the current day, Oliver separates his New Arrow group to discover his child and different prisoners. Deathstroke, Digger, and Oliver discover Felicity, Thea, Curtis, and William's mom Samantha in confines, yet they rapidly find it's a snare. Artemis and Talia spring down from a tree and Digger uncovers he was working for Chase from the beginning. Digger and Talia offer Slade an opportunity to switch sides. Deathstroke apparently switches sides, however then uncovers that he was simply attempting to incapacitate Digger. While Deathstroke pummels Digger, Oliver prevents Talia from executing Samantha. At the point when Nyssa and Malcolm appear, Talia and Harkness escapes in a puff of smoke.
In a flashback, Oliver utilizes a blade to slaughter the greater part of Kovar's men and afterward escapes to the forested areas with a rifle. Kovar heads after him to "finish" him.
Back in the current day, Deathstroke places Artemis in an enclosure, so Oliver can examine her. Oliver at that point sends Curtis, Thea, and Felicity to locate the plane they accompanied and sends Malcolm with them to protect them. Felicity kisses Oliver before she leaves, saying that he wouldn't like to lament whatever else about their relationship.
Dark Siren takes Diggle and Quentin to a religious community on the island where Rene and Dinah are being held.
Nyssa, Slade, and Oliver have a go at following Talia through the forested areas, however loses the path. Nyssa runs ahead, while Slade gives Oliver a motivational speech. Slade says that Oliver is experiencing survivor's blame and that Oliver's previous will continue frequenting him until he excuses himself for the passing of his dad.
Samantha reveals to Felicity that she's remaining on the island to discover William. Then, Thea inadvertently steps on a landmine while contending with Malcolm. Malcolm offers to switch places with her and afterward persuasively switches with her when she cannot. Malcolm says that all he's at any point needed was to ensure her. Thea attempts to contend with her more, yet they're hindered by the appearance of Digger and a portion of Chase's men. Malcolm orders them to leave. At the point when Digger draws near, Malcolm explodes the landmine...seemingly executing them both.
Nyssa, Slade, and Oliver locate the plane Oliver and Slade lived in for some time, and afterward Nyssa brings up the monastary out yonder.
In a flashback, Oliver slaughters a greater amount of Kovar's men, until Kovar comes after him with a helicopter.
When Slade and Nyssa enter the monastary, Oliver advises Nyssa to separate. When Nyssa leaves, Slade takes Oliver out and tells a moving toward Black Siren that he has a present for Chase.
Slade and Black Siren drop Oliver off in the subsequent detainee room, and Oliver gets Diggle, Rene, Dinah, and Quentin up on everything that is occurred.
In the interim, in a flashback, Oliver kills the helicopter with his weapon.
Thea grieves the demise of Malcolm, and Felicity comforts her by saying that Malcolm demonstrated that he adored his little girl. Thea wishes that she could have seen a greater amount of good father Malcolm rather than psycho executioner Malcolm. Curtis finds the plane however then rapidly finds that Chase has planted radio controlled C4 all through the island.
Oliver gives Dinah her sonic dampener, which Dinah then uses to break everybody out of their chains. Talia hears Dinah's shout, yet she's gone up against by Nyssa. The two rapidly get down to business in a one v. one swordfight. Nyssa gets the high ground on Talia, and afterward Deathstroke runs in to take out Talia's different professional killers. At the point when Oliver appears with different detainees, he clarifies that he required Deathstroke to "sell out" him so he could get the dampener to Dinah. In any case, Deathstroke couldn't discover William in the monastary. At the point when Oliver says they have to discover Chase, Chase just strolls in with a huge amount of professional killers and Black Siren.
Chase says that Oliver should execute him to discover William, however Oliver won't, which starts the beginning of a significant battle.
In another flashback, Oliver finds an injured Kovar and attempts to slaughter him with his rifle. Oliver's out of shots, and the two beginning battling once more.
In the interim, Dinah battles Black Siren in a shout off. Dark Siren gets the high ground, however Quentin takes Black Siren out from behind before she can complete Dinah off.
We at that point see Oliver battle Chase in the current day and Kovar in flashbacks. Oliver gets Kovar and Chase in a similar headlock. While Oliver snaps Kovar's neck in a flashback, he at last won't kill Chase in the current day. Oliver discloses to Chase that he may have been an executioner previously, he's not an executioner any longer. Oliver says that Chase can censure him for his dad's passing, however Oliver won't accuse himself any longer. Chase says that William is dead, yet Oliver challenges his false front. Felicity connects with Oliver and says that Chase has the explosives fixed to a deadman's switch, which clarifies why Chase is resolute that Oliver executes him. While Oliver is conversing with Felicity, Chase utilizes the professional killer smoke stunt to get away.
In a flashback, Oliver wears a hairpiece as the Chinese fishing vessel approaches Lian Yu. In the current day, Oliver watches Chase engine away on a vessel. Oliver figures out how to bounce on board the pontoon before it leaves and starts battling Chase once more.
In a flashback, we see the initial scene of Arrow replay again...as Oliver shoots the campfire to flag the anglers and getaway from the island.
In the current day, Oliver pummels Chase some more, however Chase uncovers his actual arrangement from the start: get Oliver off the island with the goal that he can observe every one of his companions bite the dust. Incidentally, Chase subverted his own plane, so none of Oliver's companions could get away. Chase at that point pulls William out of the vessel's lodge and gives Oliver a decision: murder Chase and spare his child, or let Chase live and observe every one of his companions bite the dust. Oliver claims to put his bow down, however shoots Chase in the leg.
In the last flashback of the period, Oliver calls his mom (who shows up!) and discloses to her that he's alive and returning home.
Chase says that Oliver has won, however that he'll be truly forlorn without every one of his loved ones. Chase pulls out a weapon and shoots himself, setting off all the explosives on Lian Yu. The scene closes with Lian Yu emitting into blasts as Oliver looks exceptionally tragic.
- Stephen Amell as Mayor Oliver Queen/Green Arrow
- David Ramsey as John Diggle
- Willa Holland as Thea Queen
- Emily Bett Rickards as Felicity Smoak
- Echo Kellum as Curtis Holt
- Josh Segarra as Adrian Chase
- Paul Blackthorne as Deputy Mayor Quentin Lance
Special guest star
- Katie Cassidy as Black Siren
- John Barrowman as Malcolm Merlyn/Dark Archer
- Manu Bennett as Slade Wilson/Deathstroke
- Susanna Thompson as Moira Queen
- Rick Gonzalez as Rene Ramirez
- Juliana Harkavy as Dinah Drake/Black Canary
- Katrina Law as Nyssa al Ghul
- Madison McLaughlin as Evelyn Sharp
- Lexa Doig as Talia al Ghul
- Anna Hopkins as Samantha Clayton
- Nick E. Tarabay as Digger Harkness/Captain Boomerang
- Dolph Lundgren as General Konstantin Kovar
- Leo Chiang as Supermax Guard
- Taras Kostyuk as Gennady
- Jack Moore as William Clayton
- Erik Tuzinsky as Mercenary #1
Preparation ran from March 29 until April 6, 2017. Shooting ran from April 7 until April 19, 2017, with a break on April 14 for Good Friday.
- This is the highest rated episode of the series and the highest rated episode across the whole Arrowverse with a rating of 9.7 on IMDb.
- This is the final episode of to feature flashbacks; regarding the 5 years Oliver was away from Starling City (later known as Star City).
- The flashback when Oliver runs to alert passing fishermen, as well as being rescued by them, was first shown in "". This marks the only time a clip has appeared in both the flashback storyline and the present storyline.
- The first line of the episode was "The name of the island they found me on is Lian Yu. It's Mandarin, for Purgatory", spoken by Oliver. This is the very first line that was ever said on the show, in "".
- This is the second episode after "" to take place entirely on Lian Yu in the present day, as Starling City briefly appears only in the final flashback.
- This episode marks the first and last appearance of Digger Harkness since "".
- Stephen Amell revealed on May 21 that another yet unannounced surprise cameo appearance would happen during this episode, which was revealed to be Susanna Thompson as Moira Queen.
- The first fight between Oliver and Adrian Chase, along with the flashback of Oliver and Konstantin Kovar, slightly mirrors the season 2 finale, "", in which Oliver and Slade Wilson were fighting in the present and in the flashback. It also happened after that when Oliver ran through the forest in the past and present.
- Adrian's death is very similar to Robert Queen's; both put a gun to their heads and shoot themselves through the right temple, in front of Oliver, on a boat, within sight of Lian Yu.
- Adrian's death also mirrors his comic counterpart's suicide.
- Three out of the five major season antagonists appear: Malcolm Merlyn, Slade Wilson, and Adrian Chase. However, only the latter appears in an antagonistic role; Malcolm and Slade are both seen acting as supporting protagonists.
- After Curtis finds Adrian's plane, he yells, "De plane boss, de plane!", impersonating the character Tattoo from the show Fantasy Island.
- Coincidentally, Felicity referred to Lian Yu as "Fantasy Island" in the season 2 episode "".
- The title card and theme for this episode matches that of season 1.
- This is the final appearance of Josh Segarra as a series regular.
- This is the last episode to credit Katie Cassidy as a special guest star. From the next episode ("") onwards, she is back as a series regular.
- This is the last episode to credit Rick Gonzalez and Juliana Harkavy as guest stars. From the next episode onwards, they are series regulars.
- This is Madison McLaughlin's final performance as Evelyn Sharp for she would not return for the duration of the series. McLaughlin could not appear in the series finale ("") due to prior commitments that caused scheduling conflicts.
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