With time running out for Starling City, Oliver tries to stop Ra’s from unleashing the bioweapon and killing millions.

Ra’s tells Nyssa that she must marry Oliver or face death. Meanwhile, an unexpected ally travels to Starling City to ask Diggle, Felicity, and Laurel to help infiltrate Nanda Parbat….

Ra’s sets out to transform Oliver into his perfect heir. Meanwhile, Nyssa and Laurel draw closer, but their mentor/student relationship is threatened when Ra’s sends men to bring his errant…

Oliver has no choice but to accept Ra’s’s offer to resurrect Thea. In return, Oliver must become the Heir to the Demon.

After Roy confesses that he’s the Arrow, Oliver is forced to lie low as Quentin continues his quest to prove that Oliver is the real Arrow. Meanwhile, a metahuman kills…

Ra’s makes his next move against Oliver by reveling the Arrow’s secret identity to Quentin. Left without alternatives, Oliver has no choice but to surrender. Meanwhile, Ray is injured in…

After hearing Ra’s al Ghul’s offer, Oliver returns to Starling City and contemplates whether he should accept it or not. Meanwhile, Quentin turns against the Arrow, and a new villain–Murmur–comes…

Thea betrays Malcolm to the League, but Oliver sets out to rescue his lover’s killer so that Thea won’t suffer the guilt of arranging for a parent’s death. In the…

Ra’s al Ghul sends Nyssa and her lieutenant to Starling City to inform Oliver that the League will kill 50 people a day until Sara’s murderer is turned over to…

Nyssa believes that Malcolm killed Sara and goes after him to avenger her lover’s murder. Oliver discovers that he has no choice but to stop her, despite Laurel insisting that…

Ray, Sara and Kendra are shocked after they watch the Waverider fly off without them, leaving them stranded in the ‘50s. After waiting months for their teammates to come back,…