Season 05, Episode 11 – Second Chances
Talia al Ghul agrees to help Oliver take down Kovar, but her offer comes with a steep price. Meanwhile, Felicity attempts to hack the NSA to help free Diggle, but when her online efforts are flagged, she faces off against an unknown adversary; and Curtis tells the team about a female vigilante, Tina Boland, he uncovered online who has been wreaking havoc all over the country.
Oliver Queen and his father are lost at sea when their luxury yacht sinks. His father doesn’t survive. Oliver survives on an uncharted island for five years learning to fight, but also learning about his father’s corruption and unscrupulous business dealings. He returns to civilization a changed man, determined to put things right. He disguises himself with the hood of one of his mysterious island mentors, arms himself with a bow and sets about hunting down the men and women who have corrupted his city.