Oliver makes a bold move against HIVE when the city is attacked. Meanwhile, Malcolm checks in on Thea and leaves her with a warning; and things take a horrible turn when Damien Darhk retaliates in a brutal manner at Oliver’s mayoral holiday party.

Charlotte Ross, Echo Kellum, Elysia Rotaru, Eugene Byrd, James Kidnie, Janet Kidder, Lynda Boyd, Neal McDonough, Parker Young, Ryan Robbins