This week is the first of a two-part story, with Oliver and Slade headed off on a mission to rescue Slade's son, while the rest of the team remains behind in Star City to face a familiar villain: Vigilante. Team Arrow also faces rising heat from FBI Agent Samanda Watson, as she expands her search for the colleagues of the Green Arrow. Flashbacks into Slade and his son's past shed light on why this rescue mission may not be as straightforward as initially planned.