: Laurel Lance takes a major step toward becoming the Black Canary. Driven by grief over her sister Sara’s death and the news of Oliver's disappearance, she chooses to take justice into her own hands, donning her sister's mask to fight Brick's thugs. Narrative Significance
" 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 [S3E10] Left Behind
: 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. : Laurel Lance takes a major step toward