The CW has finished up its massive "Invasion!" cross-over event that spanned across all four of the network's superhero shows. Much of the setup hinged on The Flash, which had the task of balancing out Barry's Flashpoint ripples with an all new threat in The Dominators. For better or worse, however, producers assure fans that there won't be any lingering story lines about these alien invaders.

Between Flashpoint and the cross-over, there have been a lot of characters from across the DC Multiverse that have appeared on The Flash. Even before fans realized, Harrison Wells (who was really Reverse Flash) had been from another Earth all along though it wasn't revealed until much later in the first season. However, with the introduction of Zoom in the second season, The Flash has been a revolving door of inter-dimensional travel for heroes and villains alike.

As if the world building wasn't confusing enough, photos from the Vancouver, BC set of The Flash have revealed another big team up in the near future. YVR Shoots, a popular site that posts photos and video of things filming in Vancouver, has posted a string of photos that show Barry teaming up with Cisco, Jesse, and Wally -- all of whom are in their respective suits as Vibe, Jesse Quick, and Kid Flash. Gorilla Grodd and Savitar (actors in a mocap suits), another speedster, and an unidentified woman in black also make appearances. Take a look at some of the photos below.

Savitar and Grodd in some sort of CG fight. Cisco in Vibe suit! @WhatsFilming @yvrshoots @olv #TheFlash #TheFlashSeason3 @aveiestweets pic.twitter.com/64wvzaZsF5

— WonderWoman (@ThemysciraBound) December 3, 2016

Ummm...who is this? There's a downtown #Vancouver film notice so it must be #TheFlash. But he's like no other character so far. pic.twitter.com/7R6LeVYlBv

— HollywoodNorth.buzz (@yvrshoots) December 3, 2016

The woman in black isn't the only new face; YVR Shoots also captured what looks to be yet another version of The Flash. The outfit suggests this could be a Flash from Earth-19, which is also the same part of the multiverse that H.R. calls home. Could that mean that things are about to get even more awkward between Team Flash and the not-as-useful-as-other-Harrisons H.R.?

It is unclear at which point in the season this episode will air, but this looks like it's going to be a jam-packed episode. With Gorilla Grodd making a comeback, does Barry finally trust his whole team enough to bring them all in to help save the day? One of the folks who posted the photos confirmed that Grodd and Savitar were fighting each other, making the development of the rest of this season all the more interesting.

The Flash continues with the mid-season finale, "The Present," on Tuesday, December 6th at 8PM ET on The CW.

Source: YVR Shoots