Series overview
Season 12345678
"The darkness and light are within you. In truth, you are only fighting yourself. The friends you've failed, the people you've killed, they have no place in this. Don't give in. Cast aside your doubt, resist the darkness."
Esrin Fortuna to Oliver Queen[src]

The fourth season of Arrow premiered on October 7, 2015, on The CW and concluded on May 25, 2016. It consisted of 23 episodes.



Main cast

Recurring cast


# Episode name Directed by Story by Teleplay by Original airdate
1 "Green Arrow" Thor Freudenthal Greg Berlanti & Beth Schwartz Marc Guggenheim & Wendy Mericle October 7, 2015
Oliver and Felicity's blissful getaway is cut short when Thea and Laurel pay them a visit and tell Oliver they need his help back in Star City. The city has been attacked by "Ghosts", assassins led by a dangerous man named Damien Darhk. However, when Oliver returns, Diggle makes it very clear that he doesn't want Oliver on the team.
2 "The Candidate" John Behring Marc Guggenheim & Keto Shimizu October 14, 2015
When an old family friend, Jessica Danforth, tells Oliver and Thea that she is going to run for mayor, both Queens are concerned considering the last three mayors have been murdered. Despite their protests, Jessica makes her announcement so the Green Arrow and Speedy vow to protect her. Meanwhile, Thea begins to exhibit effects from the Lazarus Pit. In addition, Felicity is faced with a tough business decision and looks to one of her employees, Curtis Holt, for help.
3 "Restoration" Wendey Stanzler Wendy Mericle & Speed Weed October 21, 2015
The growing tension between Oliver and Diggle puts both their lives at risk when they go after Damien Darhk and a H.I.V.E. deployed meta-human. Meanwhile, Laurel talks Thea into returning to Nanda Parbat to ask her father to put Sara into the Lazarus Pit. However, Laurel is surprised when Nyssa refuses to do it.
4 "Beyond Redemption" Lexi Alexander Beth Schwartz & Ben Sokolowski October 28, 2015
Laurel must deal with the repercussions of taking Sara to Nanda Parbat. Meanwhile, Oliver asks Captain Lance for a favor and while he's not surprised at the response, he is surprised at what he finds out next.
5 "Haunted" John Badham Brian Ford Sullivan & Oscar Balderrama November 4, 2015
When things take a turn for the worse with Sara, Oliver calls in a favor from an old friend who deals in the mystical, John Constantine.
6 "Lost Souls" Antonio Negret Beth Schwartz & Emilio Ortega Aldrich November 11, 2015
Felicity is frantic when she learns that Ray is alive and being held by Damien Darhk. Felicity's guilt over not finding Ray sooner causes tension between her and Oliver. Meanwhile, Sara joins Laurel, Thea and the team on a rescue mission for Ray. However, the effects of the Lazarus Pit take over and threaten to jeopardize the entire operation. Donna Smoak returns to Star City.
7 "Brotherhood" James Bamford Speed Weed & Keto Shimizu November 18, 2015
Team Green Arrow's ongoing battle with Damien Darhk is complicated by a shocking revelation. Thea's bloodlust returns and she loses control in front of Alex.
8 "Legends of Yesterday" Thor Freudenthal Greg Berlanti & Marc Guggenheim Brian Ford Sullivan & Marc Guggenheim December 2, 2015
Oliver and Barry Allen take Kendra Saunders and Carter Hall to a remote location to keep them hidden from Vandal Savage while they figure out how to defeat him. Malcolm arranges a meeting between Vandal, Green Arrow and The Flash that doesn’t go as planned. Meanwhile, Felicity, Thea, Diggle and Laurel work with Team Flash to come up with a weapon powerful enough to destroy Vandal Savage.
9 "Dark Waters" John Behring Wendy Mericle & Ben Sokolowski December 9, 2015
After the city is attacked again, Oliver makes a bold move against HIVE. Malcolm checks in on Thea and leaves her with a warning. Things take a horrible turn when Damien Darhk retaliates in a brutal manner at Oliver's mayoral holiday party.
10 "Blood Debts" Jesse Warn Oscar Balderrama January 20, 2016
Oliver must deal with the devastating consequences of Darhk's last attack. Seeking revenge, Oliver goes on a brutal manhunt looking for Dahrk.
11 "A.W.O.L." Charlotte Brandstrom Brian Ford Sullivan & Emilio Aldrich January 27, 2016
Diggle must learn to trust his brother Andy when an enemy of their wartime past, an agent of the criminal organization Shadowspire, pays a visit to Star City. However, Diggle learns more than he bargained for about their shared time at war. Meanwhile, Oliver has to learn a whole new way of life.
12 "Unchained" Kevin Fair Speed Weed & Beth Schwartz February 3, 2016
The team faces off against a formidable villain nicknamed The Calculator. Meanwhile, Nyssa makes her move and Roy Harper returns to Star City.
13 "Sins of the Father" Gordon Verheul Ben Sokolowski February 10, 2016
Oliver receives an offer from Nyssa that is hard to refuse. Meanwhile, Thea continues to battle the blood lust, Malcolm steps in to help his daughter, and Laurel has a heart to heart talk with Nyssa.
14 "Code of Silence" James Bamford Wendy Mericle & Oscar Balderrama February 17, 2016
Oliver and team uncover HIVE's plan to take out Team Arrow once and for all. With HIVE's next attack imminent, Lance wonders if Donna is safer without him in her life. Meanwhile, with the wedding fast approaching, Oliver begins to feel guilty that he hasn't told Felicity about his son.
15 "Taken" Gregory Smith Marc Guggenheim Keto Shimizu & Brian Ford Sullivan February 24, 2016
Oliver realizes he needs help battling Darhk so he calls in an old friend – Vixen. Using her magical ability to summon animal powers, Vixen gets a lock on Darhk's location and the team goes to war. Meanwhile, Thea has a heart-to-heart talk with Malcolm.
16 "Broken Hearts" John Showalter Rebecca Bellotto & Nolan Dunbar March 23, 2016
A heartbroken Cupid returns to Star City with one goal – to destroy anyone in love. The team learns she's killing couples on their wedding day so Oliver and Felicity decide to pose as bait.
17 "Beacon of Hope" Michael Schultz Ben Sokolowski & Brian Ford Sullivan March 30, 2016
Brie Larvan breaks out of jail and turns up at Palmer Tech threatening to kill everyone unless she gets the bio-chip that is implanted in Felicity's spine. When Oliver realizes that Felicity, Thea and Donna are trapped in Palmer Tech with everyone else, he looks to a surprising ally to help Team Arrow save the day.
18 "Eleven-Fifty-Nine" Rob Hardy Marc Guggenheim & Keto Shimizu April 6, 2016
Oliver and Diggle learn that Merlyn is going to try to break Darhk out of prison. Meanwhile, Laurel gets a surprising offer and Felicity has a heart-to-heart talk with Curtis.
19 "Canary Cry" Laura Belsey Wendy Mericle & Beth Schwartz April 27, 2016
Oliver and the team struggle to come to terms with Laurel's death, especially Diggle who is overwhelmed with guilt for choosing to believe Andy had changed. Meanwhile, Lance refuses to believe his daughter is really gone and asks Nyssa to help bring her back. A recent Black Canary sighting in Star City only seems to prove his theory that Laurel isn't actually dead.
20 "Genesis" Gregory Smith Oscar Balderrama & Emilio Ortega Aldrich May 4, 2016
As Oliver and Felicity look for a magical solution to defeat Darhk, a vengeance-driven Diggle gets a lead on Andy's whereabouts and heads off to confront his brother. Meanwhile, Alex takes Thea on a vacation that quickly turns into a nightmare.
21 "Monument Point" Kevin Tancharoen Speed Weed & Jenny Lynn May 11, 2016
When Team Arrow learns what Damien Darhk's next move is Felicity realizes she needs to ask her father, Noah Kuttler, for help. Noah and Oliver have a heart to heart talk that leaves Oliver rattled.
22 "Lost in the Flood" Glen Winter Brian Ford Sullivan & Oscar Balderrama 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.
23 "Schism" John Behring Greg Berlanti Wendy Mericle & Marc Guggenheim May 25, 2016
Oliver teams up with a surprising force in an attempt to stop Damien Darhk and his magic once and for all.



Title cards

Promotional images

Concept artwork



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