Oliver makes a drastic move in his quest to find Diaz. Like her husband, Felicity pulls out all the stops to get Diaz. Meanwhile, when arsonists target Rene's community centre, injuring Zoe in the process, the mysterious new Green Arrow swoops in to help save the day. Faced with pressure from the mayor to capture the vigilante, Dinah must decide if following the rules at all costs is the best plan to keep the city safe.
—sarah_l91