Arrow: Season 4

When things take a turn for the worse with Sara,... More Oliver calls in a favor from an old friend who deals in the mystical, John Constantine.

Felicity is frantic when she learns that Ray is alive... More 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.

Team Green Arrow's ongoing battle with Damien Darhk is complicated... More by a shocking revelation. Thea's bloodlust returns and she loses control in front of Alex.

Oliver and Barry Allen take Kendra Saunders and Carter Hall... More 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. The crossover starts on The Flash S02E08 Legends of Today (I).

After the city is attacked again, Oliver makes a bold... More 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.

Oliver must deal with the devastating consequences of Darhk’s last... More attack. Seeking revenge, Oliver goes on a brutal manhunt looking for Dahrk.

Diggle must learn to trust his brother Andy when an... More 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.

The team faces off against a formidable villain nicknamed The... More Calculator. Meanwhile, Nyssa makes her move and Roy Harper returns to Star City.

Oliver receives an offer from Nyssa that is hard to... More 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.

Oliver and team uncover HIVE’s plan to take out Team... More 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.

Oliver realizes he needs help battling Darhk so he calls... More 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.

A heartbroken Cupid returns to Star City with one goal... More – 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.

Brie Larvan breaks out of jail and turns up at... More 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.

Oliver and Diggle learn that Merlyn is going to try... More to break Darhk out of prison. Meanwhile, Laurel gets a surprising offer and Felicity has a heart-to-heart talk with Curtis.

Oliver and the team struggle to come to terms with... More 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.

As Oliver and Felicity look for a magical solution... More 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.

When Team Arrow learns what Damien Darhk's next move is... More 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.

Following the shocking events in the previous episode, Oliver and... More Diggle race to rescue Thea, while Felicity, Curtis and Noah join together to stop Darhk.

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