After being presumed dead, billionaire playboy Oliver Queen returns home to fight corruption and right the wrongs of his family under the persona of a masked vigilante.
After someone close to Oliver is murdered, Team Arrow find themselves pitted against a vengeful League of Assassins and its head, Ra's al Ghul. Newcomer Ray Palmer takes control of Queen Consolidated, and in the past Oliver lives in Hong Kong under the thumb of Amanda Waller.
Oliver Queen must once again reinvent himself to be the hero that Star City needs when the city is threatened by a powerful villain named Damien Darkh, who has tapped into the dark arts.
Oliver Queen works to help his city in a public way after he becomes Mayor of Star City, while Felicity helps to recruit and train a new team of heroes -- as a shadowy villain called Prometheus targets Oliver in deeply personal ways.
As Oliver begins a new chapter with his son William, enemies old and new threaten to disrupt a tenuous peace in Star City and smash the alliance of heroes that Team Arrow has assembled.
With Oliver exposed and imprisoned Star City faces a new threat from the Longbow Hunters, a legendary group of assassins recruited by Ricardo Diaz to exact revenge on Team Arrow.