THE FLASH Starts Production on DC Crossover Episodeby Susan GittinsSeptember 23, 2017September 28, 2017 Calendar Add to Calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar Export to XML When: September 22, 2017 all-day 2017-09-22T00:00:00-07:00 2017-09-23T00:00:00-07:00 Cost: Free Contact: Twitter Event website