" Left Behind " is the tenth episode of the third season of the television series , which originally aired on January 21, 2015. This episode serves as a critical turning point in the season, dealing with the aftermath of Oliver Queen's apparent death at the hands of Ra's al Ghul. Plot Overview
: The episode explores the "power vacuum" left by a hero. It tests the resolve of the supporting cast, forcing them to define themselves as heroes independent of Oliver's guidance. [S3E10] Left Behind
According to the Arrowverse Wiki , this arc eventually leads to Oliver's recovery in Ivy Town and his eventual return to save Starling City from the League's ultimate plans. " Left Behind " is the tenth episode
Following Oliver’s defeat in a duel against the leader of the League of Assassins, his teammates in Starling City—John Diggle, Felicity Smoak, and Roy Harper—must confront the possibility that their leader is dead. While Felicity remains in denial, the team is forced to continue protecting the city from a new threat: Danny "Brick" Brickwell. Brick begins a violent campaign to take over the Glades by stealing evidence from the police department to set criminals free. It tests the resolve of the supporting cast,