Arrow and The Flash will have their crossover episodes this fall!
Arrow and The Flash season crossover episodes will air this December Facebook/CW

The much awaited Arrow and The Flash crossover episode synopsis is out.

The Flash episode is titled Flash vs. Arrow where Oliver, Felicity and his team visit central city to investigate a meta-human case.

The official synopsis reads:

Following this episode, Arrow will bring us the conclusion of the crossover with an episode titled, The Brave and The Bold, where Oliver and Barry will unite to save the city.

The official synopsis reads:

Flash vs. Arrow will air on 2 December, while Arrow's The Brave & The Bold will air on 3 December on CW.

Also, The Flash's star Danielle Panabaker tweeted an image of the first semi-official look of the Reverse Flash in October.

The Flash Arrow Crossover episode
The man in the Yellow suit is reported the Reverse Flash DaniellePanabaker/Twitter

She said: Thank u @GBerlanti @AJKreisberg & @geoffjohns for the crepe truck! Love, the (now a little fatter) flash cast & crew"

In the picture, the actress is thanking the cast and executive producers Geoff Johns, Andrew Kreisberg and Greg Berlanti.

Comicbook speculated that the poster features The Flash along with a yellow-and-black-clad character who seems to be the Reverse Flash character Professor Zoom.

Will the Reverse Flash appear in the crossover episode?

Here is the promo for next week's The Flash