Cayden James ups the ante by launching his plan to take control of every aspect of the city. Despite the scope of Cayden’s plan, Oliver is determined to foil it with just the Original Team Arrow — and without the aid of Rene, Dinah, or Curtis. But things get complicated when William is endangered as a result of Cayden’s handiwork.

The episode was rated 7.59 from 2463 votes.

As Slade continues to uncover clues about his son’s last few years, Oliver makes a big decision. Meanwhile, the Green Arrow leads the team into battle against “The Dragon,” a villain who is stealing valuable tech in Star City.

The episode was rated 7.60 from 2932 votes.

The future of the team is left hanging in the balance after the emotional showdown between Oliver Queen and Adrian Chase. Now, the focus shifts to uncovering the fate of each and every member of Team Arrow. Could anyone have possibly survived an island-wide explosion, or has the book closed on them, as it has on Oliver's five-year flashback story?

The episode was rated 7.60 from 4038 votes.

Oliver and Thea are shocked to hear that Roy Harper is back in Star City. However, when they discover the circumstances of Roy's return, Oliver and Thea realize that Roy is in trouble and jump in to save him. Black Siren makes a shocking decision.

The episode was rated 7.60 from 2270 votes.

Oliver celebrates Thanksgiving with his family but the happy moment is interrupted. Meanwhile, Black Siren returns to wreak havoc on the holiday.

The episode was rated 7.60 from 2818 votes.

In his darkest place yet, Oliver wonders if he has failed at everything — being a father, a mayor and a hero. His frustration rising, Oliver lashes out at Felicity and William. A surprising visit from an old friend has Oliver questioning his next move.

The episode was rated 7.61 from 2157 votes.

Oliver continues his battle with Cayden James. Dinah and Oliver have a major disagreement that endangers the life of one of their own.

The episode was rated 7.63 from 2408 votes.

Quentin Lance is kidnapped by Black Siren and Cayden James, who are looking to trade Lance’s life for a weapon of mass destruction. Oliver and Team Green Arrow must figure out a way to save Lance while still keeping the city safe.

The episode was rated 7.64 from 2668 votes.

A rogue black ops team led by Onyx breaks into Kord Industries and steals something lethal. Oliver struggles to connect with William so he reaches out to a surprising source for help.

The episode was rated 7.65 from 3294 votes.

Cayden James discovers a secret about the Green Arrow that pushes him over the edge. Knowing everyone and everything he loves is in danger, Oliver must decide if he can do this alone or if he needs to turn to his old teammates for help. William starts to demand more of Oliver’s time.

The episode was rated 7.66 from 2387 votes.

Slade returns and asks Oliver for help in tracking down his son. When they learn Joe has been taken hostage by mercenaries, their mission to save him gets complicated by a terrible revelation that could shatter Slade's hopes of reunion forever. Meanwhile, Vigilante reappears in Star City.

The episode was rated 7.78 from 3040 votes.

Barry and Iris’s wedding brings the gang together, but things go awry when villains from Earth-X attack the ceremony. All of the superheroes band together with help from their super friends like Citizen Cold, The Ray, Felicity Smoak, Iris West and Alex Danvers to take on their most formidable villains yet. Earth’s mightiest heroes — Green Arrow, Supergirl, The Flash and White Canary — lead their teams into battle to save the world.

The episode was rated 7.80 from 3527 votes.

Diaz targets Team Arrow and their loved ones. Oliver struggles with Felicity putting herself in danger when she gets the chance to stop Diaz for good.

The episode was rated 7.82 from 2054 votes.

The pressure mounts for Oliver who begins to wonder if he will lose everything in his battle to save Star City. A familiar face returns.

The episode was rated 7.87 from 2082 votes.

With a new ally on his team, Oliver engages Diaz in an epic final battle.

The episode was rated 7.88 from 2086 votes.