Before being found on a remote island, Oliver Queen was presumed to be dead for five years after a terrible shipwreck.
Prior to the shipwreck, Oliver was a wealthy and laid-back heart-breaker, without a care in the world. However, being on a deserted island changed him. While still pretending to be the man he used to be, Oliver goes by a different persona, Arrow, at night. As Arrow, Oliver tries to fight society's villains and restore his city to the way it used to be.
Felicity: You honor the dead by fighting. And you are not done fighting! Malcolm Merlyn, The Count, The Clock King, The Triad, everyone who has tried to hurt this city -- you stopped them. And you will stop Slade.
Oliver: I don't know how.
Felicity: Neither do I, but I do know two things: You are not alone and I believe in you.
Diggle: I've just never seen you spooked like this before.
Oliver: That should tell you something.