Oliver realizes that Diaz has subverted Hill and Armand, and faces a challenge from within what remains of the team. Meanwhile, Curtis discovers that his new boyfriend dislikes vigilantes.

Diaz and Laurel travel to Bludhaven to arrange a meeting with the Quadrant--the largest criminal organization in the country. Things don't go as expect, but Diaz has a backup plan. Meanwhile, Felicity deals with not being there for Oliver as he takes a lone-wolf approach to battling Diaz.