Irreconcilable Differences

"Irreconcilable Differences" is the upcoming ninth episode of the sixth season of Arrow and the one-hundred-twenty-fourth episode overall. It will air on December 7, 2017.

Synopsis
Quentin Lance is kidnaped by Black Siren and Cayden James, who are looking to trade Lance’s life for a weapon of mass destruction. Oliver and Team Green Arrow must figure out a way to save Lance while still keeping the city safe.

Production
Preparation ran from October 5 until October 16, 2017, with a break on October 9 for Thanksgiving. Shooting ran from October 17 until October 26, 2017.