Oliver and Felicity had sexual intercourse for the first time ever on Arrow Season 3 Episode 20.
It was the event fans have been waiting years for, yet it was overshadowed by an even more cataclysmic development:
The end of Oliver Queen as we know him.
In order to save Thea’s life, Oliver agreed to shed his past identity and transform into Al Sah-Him, the Heir to the Demon.
Therefore, on Arrow Season 3 Episode 21, the team will need to regroup with Oliver in order to take on a new villain… Oliver!
Look for our hero to through a rigorous transformation next Wednesday night, while the League of Assassins comes after Nyssa, prompting her to arm herself to face them all alone.
However, Laurel will ask Felicity and Diggle to help protect Nyssa.
Click on the above network promo for a peek ahead and then watch Arrow online for a fascinating look back.
This was a transformative hour of television. You want to be sure you caught every minute of it.