The background of Arrow Season 3 is that Oliver Queen, who is worth hundreds of millions, suffered a serious boat accident. Five years after he was missing and declared dead, he was found alive. When he returned to the big city, he was warmly welcomed by his family and friends, but they also felt that he was different from five years ago. The island experience put Oliver under double test of spirit and body. He tried his best to hide his true self in front of everyone, and was determined to make up for the mistakes his father made to the city. During the day, he is still a rich son, but at night he turns into the messenger of justice "Green Arrow". Detective Quentin, the father of his ex-girlfriend Laurel, decided to arrest this unpredictable ranger to maintain the city's law and order. And there is also a dark force approaching him in the dark.