Oliver searches for an identity beyond the Arrow. But the moment he takes his eye off the ball, a new villain emerges, pressing him back into action.

Team Arrow is in pursuit of a new villain who poses a threat to Starling City. Meanwhile, Oliver is worried about not having heard from Thea.

Oliver, Roy and Diggle fly to Corto Maltese to find and convince Thea to come back home to Starling City, Lyla sees this as an opportunity and asks Diggle to locate an A.R.G.U.S. field operatives there.

Nyssa and Oliver join forces to go after the Dark Archer.

Felicity's family and backstory come to the fore. Felicity tries to find common ground with her mother but it is clear the two are very different.

Ted Grant becomes the primary suspect when a body is found in the Wildcat gym and Roy shares a secret with Felicity.

With boomerang-wielding killer Digger Harkness targeting Lyla and A.R.G.U.S. agents, Oliver enlists the help of his old friend, The Flash.

Nyssa returns to Starling City and tells Oliver that her father, Ra's al Ghul has given the Arrow 48 hours to find Sara's killer before he unleashes the League of Assassins.

The Team's worst fears are realized when Merlyn informs them of Oliver's death. Meanwhile Ray Palmer tests part of his ATOM suit out and Laurel Lance decides to pursue justice outside of the law by taking up the mantle of the Black Canary.

Oliver struggles to adjust to the changes that have taken place within Team Arrow; Laurel ignores Oliver and pursues Vertigo - who injects her with the drug; Thea receives a surprise visitor.

Oliver thinks about the offer Ra's Al Ghul gave him, but to do so theres a catch.

After an attack on the Mayor's office leaves Ray critically injured, Oliver and Team Arrow try to find the culprit, but things heat up when Ra's al Ghul kidnaps Capt. Lance.

Oliver keeps a low profile to avoid Lance, but when a meta-human known as Deathbolt starts terrorizing Starling City, Oliver asks Ray for help.

Ra's al Ghul finally makes Oliver an offer he can't refuse. The team follows Oliver back to Nanda Parbat where a heartbroken Felicity decides to take matters into her own hands.

Oliver goes through a transformation; Laurel asks Felicity and Diggle to help Nyssa face the League of Assassins.

As Oliver finishes his final training as Al Sah-him to become the next Ra's al Ghul, Malcolm makes a surprising offer to Team Arrow. Roy reunites with Thea.

Ra's al Ghul sets his plan in motion, putting everyone in danger; Oliver must decide if he is strong enough to handle his new role - and what it will mean for his team and his soul.