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S4:E1 Green Arrow

Arrow
10/07/2015 08:00 pm EDT

A new enemy lures Oliver Queen back to Starling City and forces him to put on the hood once more.

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S4:E2 The Candidate

Arrow
10/14/2015 08:00 pm EDT

Oliver and Thea are concerned when a family friend plans to run for mayor; Thea starts to exhibit side effects from the Lazarus ...read more Oliver and Thea are concerned when a family friend plans to run for mayor; Thea starts to exhibit side effects from the Lazarus Pit; Felicity asks an employee for help with a business decision. show less

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S4:E3 Restoration

Arrow
10/21/2015 08:00 pm EDT

The tension between Oliver and Diggle puts them at risk when they target Damien Darhk and a meta-human; Laurel convinces Thea to ...read more The tension between Oliver and Diggle puts them at risk when they target Damien Darhk and a meta-human; Laurel convinces Thea to return to Nanda Parbat to request Sara be put into the Lazarus Pit. show less

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S4:E4 Beyond Redemption

Arrow
10/28/2015 08:00 pm EDT

Laurel must deal with the repercussions of taking Sara to Nanda Parbat. Meanwhile, Oliver asks Captain Lance for a favor and ...read more 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. show less

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S4:E5 Haunted

Arrow
11/04/2015 08:00 pm EST

Oliver calls in a favor from old friend John Constantine when things with Sara take a turn for the worse.

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S4:E6 Lost Souls

Arrow
11/11/2015 08:00 pm EST

Felicity (Emily Bett Rickards) is frantic when she learns that Ray (guest star Brandon Routh) is alive and being held by Damien ...read more Felicity (Emily Bett Rickards) is frantic when she learns that Ray (guest star Brandon Routh) is alive and being held by Damien Darhk (guest star Neal McDonough). Felicity’s guilt over not finding Ray sooner causes tension between her and Oliver (Stephen Amell). Meanwhile, Sara (guest star Caity Lotz) joins Laurel (Katie Cassidy), Thea (Willa Holland) 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 (guest star Charlotte Ross) returns to Star City. show less

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S4:E7 Brotherhood

Arrow
11/18/2015 08:00 pm EST

Team Green Arrow’s ongoing battle with Damien Darhk (Neal McDonough) is complicated by a shocking revelation. Thea’s (Willa ...read more Team Green Arrow’s ongoing battle with Damien Darhk (Neal McDonough) is complicated by a shocking revelation. Thea’s (Willa Holland) bloodlust returns and she loses control in front of Alex (guest star Parker Young). show less

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S4:E8 Legends Of Yesterday

Arrow
12/02/2015 08:00 pm EST

PART TWO OF THE EPIC CROSSOVER WITH “THE FLASH” — Oliver (Stephen Amell) and Barry Allen (guest star Grant Gustin) take ...read more PART TWO OF THE EPIC CROSSOVER WITH “THE FLASH” — Oliver (Stephen Amell) and Barry Allen (guest star Grant Gustin) take Kendra Saunders (guest star Ciara Renée) and Carter Hall (guest star Falk Henstchel) to a remote location to keep them hidden from Vandal Savage (guest star Casper Crump) while they figure out how to defeat him. Malcolm (John Barrowman) arranges a meeting between Vandal, Green Arrow and The Flash that doesn’t go as planned. Meanwhile, Felicity (Emily Bett Rickards), Thea (Willa Holland), Diggle (David Ramsey) and Laurel (Katie Cassidy) work with Team Flash to come up with a weapon powerful enough to destroy Vandal Savage. Thor Freudenthal directed the episode with story by Greg Berlanti & Marc Guggenheim and teleplay by Brian Ford Sullivan & Marc Guggenheim (#408). show less

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S4:E9 Dark Waters

Arrow
12/09/2015 08:00 pm EST

After the city is attacked again, Oliver (Stephen Amell) makes a bold move against HIVE. Malcolm (John Barrowman) checks in on ...read more After the city is attacked again, Oliver (Stephen Amell) makes a bold move against HIVE. Malcolm (John Barrowman) checks in on Thea (Willa Holland) and leaves her with a warning. Things take a horrible turn when Damien Darhk (guest star Neal McDonough) retaliates in a brutal manner at Oliver’s mayoral holiday party. John Behring directed the episode written by Wendy Mericle & Ben Sokolowski (#409). show less

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S4:E10 Blood Debts

Arrow
01/20/2016 08:00 pm EST

Arrow returns from its midseason break as Oliver seeks revenge for Felicity.

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S4:E11 A.W.O.L.

Arrow
01/27/2016 08:00 pm EST

DIGGLE VS. SHADOWSPIRE — Diggle (David Ramsey) must learn to trust his brother Andy (guest star Eugene Byrd) when an enemy of ...read more DIGGLE VS. SHADOWSPIRE — Diggle (David Ramsey) must learn to trust his brother Andy (guest star Eugene Byrd) 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 (Stephen Amell) has to learn a whole new way of life. Charlotte Brandstrom directed the episode written by Brian Ford Sullivan & Emilio Ortega Aldrich (#411). Original airdate 1/27/2016. show less

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S4:E12 Unchained

Arrow
02/03/2016 08:00 pm EST

The team faces off against a formidable villain nicknamed The Calculator (guest star Tom Amandes). Meanwhile, Nyssa (guest star ...read more The team faces off against a formidable villain nicknamed The Calculator (guest star Tom Amandes). Meanwhile, Nyssa (guest star Katrina Law) makes her move and Roy Harper (guest star Colton Haynes) returns to Star City. show less

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S4:E13 Sins of the Father

Arrow
02/10/2016 08:00 pm EST

Oliver (Stephen Amell) receives an offer from Nyssa (guest star Katrina Law) that is hard to refuse. Meanwhile, Thea (Willa ...read more Oliver (Stephen Amell) receives an offer from Nyssa (guest star Katrina Law) that is hard to refuse. Meanwhile, Thea (Willa Holland) continues to battle the blood lust, Malcolm (John Barrowman) steps in to help his daughter, and Laurel (Katie Cassidy) has a heart to heart talk with Nyssa. show less

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S4:E14 Code of Silence

Arrow
02/17/2016 08:00 pm EST

Oliver (Stephen Amell) and team uncover HIVE’s plan to take out Team Arrow once and for all. With HIVE’s next attack ...read more Oliver (Stephen Amell) and team uncover HIVE’s plan to take out Team Arrow once and for all. With HIVE’s next attack imminent, Lance (Paul Blackthorne) wonders if Donna (guest star Charlotte Ross) is safer without him in her life. Meanwhile, with the wedding fast approaching, Oliver begins to feel guilty that he hasn’t told Felicity (Emily Bett Rickards) about his son. show less

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S4:E15 Taken

Arrow
02/24/2016 08:00 pm EST

Oliver (Stephen Amell) realizes he needs help battling Darhk (guest star Neal McDonough) so he calls in an old friend – Vixen ...read more Oliver (Stephen Amell) realizes he needs help battling Darhk (guest star Neal McDonough) so he calls in an old friend – Vixen (guest star Megalyn E.K.). Using her magical ability to summon animal powers, Vixen gets a lock on Darhk’s location and the team goes to war. Meanwhile, Thea (Willa Holland) has a heart-to-heart talk with Malcolm (John Barrowman). show less

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S4:E16 Broken Hearts

Arrow
03/23/2016 08:00 pm EDT

Following the events of William's kidnapping, Darhk has become less powerful, but Carrie Cutter, a.k.a. Cupid, has emerged ...read more Following the events of William's kidnapping, Darhk has become less powerful, but Carrie Cutter, a.k.a. Cupid, has emerged into Star City to cause chaos on the city and the Green Arrow. show less

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S4:E17 Beacon of Hope

Arrow
03/30/2016 08:00 pm EDT

The Bug-Eyed Bandit escapes from jail and turns up at Palmer Tech threatening to kill everyone in the building unless she gets ...read more The Bug-Eyed Bandit escapes from jail and turns up at Palmer Tech threatening to kill everyone in the building unless she gets the bio-chip that was implanted in Felicity's spine. show less

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S4:E18 Eleven-Fifty-Nine

Arrow
04/06/2016 08:00 pm EDT

Oliver and Diggle learn that Malcolm is planning to break Darhk out of prison.

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S4:E19 Canary Cry

Arrow
04/27/2016 08:00 pm EDT

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S4:E20 Genesis

Arrow
05/04/2016 08:00 pm EDT

DIGGLE IS CONSUMED WITH GUILT AND SEEKS REVENGE – As Oliver (Stephen Amell) and Felicity (Emily Bett Rickards) look for a ...read more DIGGLE IS CONSUMED WITH GUILT AND SEEKS REVENGE – As Oliver (Stephen Amell) and Felicity (Emily Bett Rickards) look for a magical solution to defeat Darhk (guest star Neal McDonough), a vengeance-driven Diggle (David Ramsey) gets a lead on Andy’s (guest star Eugene Byrd) whereabouts and heads off to confront his brother. Meanwhile, Alex (guest star Parker Young) takes Thea (Willa Holland) on a vacation that quickly turns into a nightmare. Gregory Smith directed the episode written by Oscar Balderrama & Emilio Ortega Aldrich (#420). Original airdate 5/4/2016. show less

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S4:E21 Monument Point

Arrow
05/11/2016 08:00 pm EDT

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S4:E22 Lost in the Flood

Arrow
05/18/2016 08:00 pm EDT

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S4:E23 Schism

Arrow
05/25/2016 08:00 pm EDT

Oliver teams up with a surprising force in an attempt to stop Damien Darhk and his magic once and for all.