Yesterday, The CW posted an intriguing new video that featured the heroes and villains of both Arrow and The Flash squaring off in a "superhero fight club." The network has debuted three posters, featuring Arrow (Stephen Amell), Arsenal (Colton Haynes) and The Flash (Grant Gustin) inside the massive steel cage from yesterday's video. It isn't expected that this "superhero fight club" will be featured on any show, but it's possible that this unique arena could be used in the Arrow / Flash Spinoff that will feature characters from both hit programs.

The Flash returns after a brief two-week hiatus with "All-Star Team Up", which features Arrow's Felicity Smoak (guest star Emily Bett Rickards) arriving from Starling City along with her boyfriend, Ray Palmer (guest star Brandon Routh), who flies in as the Atom. They've come to visit S.T.A.R. Labs as Ray needs help with his suit. Their timing turns out to be fortuitous because it's all hands on deck after a meta human named Brie Larvin (guest star Emily Kinney) unleashes hundreds of robotic bees to attack and kill her former co-workers, including Dr. Tina McGee (guest star Amanda Pays). A group dinner with Barry, Felicity, Ray, Iris (Candice Patton) and Eddie (Rick Cosnett) turns into a disaster.

Arrow is also returning from a two-week hiatus tomorrow night at 8 PM ET with "Broken Arrow", where Lance (Paul Blackthorne) continues his mission to take down the Arrow so Felicity orders Oliver to keep a low profile. However, when a meta-human named Jake Simmons (guest star Doug Jones), who kills people with blasts of energy and plasma, starts terrorizing Starling City, Oliver is forced to ask Ray for help, as the unlikely duo is forced to team up to save the city. Take a look at these new posters below to

Flash Superhero Fight Club Poster
<strong><em>Arrow</em></strong> Superhero Fight Club Poster
Arsenal Superhero Fight Club Poster