Episodes

Oliver deals with the fallout of the explosion on the island.

Anatoly returns to Star City with a sinister agenda as Oliver tries to balance being the mayor, the Green Arrow and ...read more Anatoly returns to Star City with a sinister agenda as Oliver tries to balance being the mayor, the Green Arrow and William's father. show less

A rogue black ops team led by Onyx breaks into Kord Industries and steals something lethal. Oliver struggles to connect with ...read more 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. show less

BLACK SIREN STRIKES AGAIN — Just as Oliver starts to get things in order, Black Siren launches another attack on the citizens ...read more BLACK SIREN STRIKES AGAIN — Just as Oliver starts to get things in order, Black Siren launches another attack on the citizens of Star City. show less

Bennett) returns and asks Oliver for help in tracking down his son. When they learn Joe (guest star William Franklyn-Miller) has ...read more Bennett) returns and asks Oliver for help in tracking down his son. When they learn Joe (guest star William Franklyn-Miller) 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. show less

Slade Wilson/Deathstroke (Manu Bennett) comes face to face with his long-lost son, Joe, who turns out to be the leader of a ...read more Slade Wilson/Deathstroke (Manu Bennett) comes face to face with his long-lost son, Joe, who turns out to be the leader of a mercenary group. Oliver Queen (Stephen Amell) will find himself in danger as Slade attempts to connect with Joe as Joe instructs Slade to take back what was taken from him -- in this case, a literal eye for an eye. show less

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

Barry and Iris’s wedding brings the gang together, but things go awry when villains from Earth-X attack the ceremony. All of ...read more 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. show less

Quentin Lance is kidnapped by Black Siren and Cayden James, who are looking to trade Lance’s life for a weapon of mass ...read more 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. show less

Despite losing half his team, Oliver remains confident that he, Felicity and Diggle can stop Cayden James and Black Siren. ...read more Despite losing half his team, Oliver remains confident that he, Felicity and Diggle can stop Cayden James and Black Siren. However, when he discovers one of Cayden’s secrets, he decides to team up with an unlikely ally. Meanwhile, Dinah spends time with Vince. show less

Cayden James ups the ante by launching his plan to take control of every aspect of the city. Despite the scope of Cayden’s ...read more 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. show less

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

Cayden James discovers a secret about the Green Arrow that pushes him over the edge. Knowing everyone and everything he loves ...read more 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. show less

Oliver, Diggle and Felicity disagree with Dinah, Curtis and Rene on how to handle Black Siren. The two teams face off and a ...read more Oliver, Diggle and Felicity disagree with Dinah, Curtis and Rene on how to handle Black Siren. The two teams face off and a fight ensues. show less

Oliver and Thea are shocked to hear that Roy Harper is back in Star City. However, when they discover the circumstances of ...read more 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. show less

Nyssa Al Ghul returns to Star City to warn Thea that a group of renegade League of Assassins members are planning to attack her. ...read more Nyssa Al Ghul returns to Star City to warn Thea that a group of renegade League of Assassins members are planning to attack her. This group, led by Athena, is intent on finding a mysterious box that Malcolm left behind and will stop at nothing to get it. Nyssa helps Oliver come to a life-changing realization show less

Oliver and Diggle face their biggest challenge yet. Curtis is disappointed to find out his new boyfriend has a firm ...read more Oliver and Diggle face their biggest challenge yet. Curtis is disappointed to find out his new boyfriend has a firm anti-vigilante stance. show less

In his darkest place yet, Oliver wonders if he has failed at everything – being a father, a mayor and a hero. His frustration ...read more 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 (guest star Jack Moore). A surprising visit from an old friend has Oliver questioning his next move. show less

Looking to expand his empire, Diaz (guest star Kirk Acevedo) and Laurel meet with The Quadrant, a coalition of mafia families ...read more Looking to expand his empire, Diaz (guest star Kirk Acevedo) and Laurel meet with The Quadrant, a coalition of mafia families who run national organized crime. Meanwhile, after Oliver’s recent decision, Felicity and Curtis double their efforts on building Helix Dynamics. show less

Oliver turns to an old friend to help battle Diaz (guest star Kirk Acevedo). Meanwhile, Rene is out of the hospital but has a ...read more Oliver turns to an old friend to help battle Diaz (guest star Kirk Acevedo). Meanwhile, Rene is out of the hospital but has a hard time re-adjusting to life as Wild Dog. Also, Lance discovers something shocking about Black Siren. show less

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

Diaz (guest star Kirk Acevedo) targets Team Arrow and their loved ones. Oliver struggles with Felicity putting herself in danger ...read more Diaz (guest star Kirk Acevedo) 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. show less

With a new ally on his team, Oliver engages Diaz (guest star Kirk Acevedo) in an epic final battle.