2012 | 23 Episodes
Season 1 of Arrow premiered on October 10, 2012.
Oliver Queen returns to Starling city after being deserted on a hellish island for five years. He decides to become a mask wearing vigilante to fulfil his father's wishes and rid the city of crime. In his journey to do so, he is forced to make tough decisions even as he makes new friends and even more enemies which continue question his lethal ways of controlling crime.
2013 | 23 Episodes
Season 2 of Arrow premiered on October 9, 2013.
At the end of Season 1, Starling city suffered a huge loss and so did Oliver Queen. Learning from his mistakes, Oliver decides to change his methods even while honouring his promises to his friend. Meanwhile a new enemy from his past resurfaces to make life difficult for Oliver.
2014 | 23 Episodes
Season 3 of Arrow premiered on October 8, 2014.
Having achieved true hero status - Oliver Queen faces new challenges with a foe who has come back from the dead. This time, he has help in the form a new hero/side kick and a lot of familiar faces. There is also a new player - Ray Palmer (future atom) - in the mix, who has a new vision for turning Starling City into Star City.
2015 | 23 Episodes
Season 4 of Arrow premiered on October 7, 2015.
After defeating his most formidable foe to date and riding off into the sunset with longtime flame Felicity Smoak, Oliver Queen (aka The Arrow) left Starling City with the hopes of beginning a new life. But will Oliver ever truly be able to leave behind his past as the Arrow, and, if so, what becomes of the team he has worked so hard to assemble? Will military vet John Diggle, Oliver’s sister Thea Queen, and lawyer-turned-vigilante Laurel Lance be left to continue Oliver's crusade without him? And with Malcolm Merlyn having ascended to the top of the League of Assassins as the new Ra's al Ghul, is anyone really safe? The action-packed series continues with new villains, new heroes and new challenges!
2016 | 23 Episodes
Season 5 of Arrow premiered on October 5, 2016.
Newly appointed Mayor Oliver Queen finds himself challenged as he fights on two fronts for the future of Star City. With his right hand, John Diggle, back in the military and his sister Thea adamant about hanging up her vigilante hood as Speedy, Team Green Arrow is down to just Oliver and Felicity – but they’re no longer the only vigilantes in town. Green Arrow’s public defeat of Damien Darhk at the end of Season Four has inspired a new crop of masked heroes to step up and defend the city, though their painful inexperience makes them obstacles rather than allies in the field. The arrival of a deadly new adversary will force Oliver to confront questions about his own legacy, both as mayor and as the Green Arrow.
2017 | 23 Episodes
Season 6 of Arrow premiered on October 12, 2017.
Oliver has finally solidified and strengthened his crime-fighting team only to have it threatened when unexpected enemies from his past , including Black Siren, return to Star City, forcing Oliver to rethink his relationship with each member of his “family.” With the team left hanging in the balance, the focus shifts to the fates of every member of Team Arrow!
2018 | 22 Episodes
Season 7 of Arrow premiered on October 15, 2018.
There has been no shortage of close calls for Oliver Queen when it comes to protecting his superhero identity, but in the season six finale he was finally backed into a corner and forced to reveal himself to the world as the Green Arrow. Now, Oliver will come face-to-face with many of the criminals he placed behind bars, as he makes a new home for himself at Slabside Maximum Security Prison. Oliver will find himself vulnerable in a way unlike ever before when a mysterious new enemy begins to unravel his work as Green Arrow, challenging him to redeem his name or risk losing everything.
2019 | 10 Episodes
Season 8 of Arrow premiered on October 15, 2019.
In Arrow's final season, Oliver Queen is forced to confront the reality of what it means to be a hero.