One week ago today, The CW released a special video that showed characters from both Arrow and The Flash taking part in what was called a "Superhero Fight Club," as heroes and villains squared off in a massive steel cage. The network continued with this theme last Tuesday, when they released three character posters featuring Arrow (Stephen Amell), The Flash (Grant Gustin) and Arsenal (Colton Haynes) in the Superhero Fight Club cage. Today, the network released two more character posters featuring two prominent villains from the secretive fight club, Arrow's Malcolm Merlyn (John Barrowman) and The Flash's Reverse Flash (Tom Cavanagh).

The Flash returns tomorrow, Tuesday, April 21 with "Who Is Harrison Wells?", which centers on Joe (Jesse L. Martin) and Cisco (Carlos Valdes) heading to Starling City to continue their investigation of Dr. Wells (Tom Cavanagh). While in town, the duo enlists the help of Captain Lance (guest star Paul Blackthorne), and Cisco meets the Black Canary (guest star Katie Cassidy), who asks him for a favor. Meanwhile, back in Central City, Barry (Grant Gustin) races to catch a meta-human named Hannibal Bates (guest star Martin Novotny) who can transform himself into every person he touches - which includes Eddie (Rick Cosnett), Iris (Candice Patton), Caitlin (Danielle Panabaker) and even The Flash.

Arrow returns the following night, Wednesday, April 22, with "The Fallen", where Ra's al Ghul (guest star Matthew Nable) finally makes Oliver (Stephen Amell) an offer he can't refuse. The team joins Oliver on his journey to Nanda Parbat where a heartbroken Felicity (Emily Bett Rickards) decides to take matters into her own hands. There are only a handful of episodes left this season for both Arrow and The Flash, and since both shows keep using the superhero fight club backdrop for these new posters, perhaps we'll get to see all of these heroes and villains square off in some of the actual episodes. Would you like to see this fight club become an actual part of the show? Let us know what you think after checking out the latest posters.

<strong><em>The Flash</em></strong> Reverse Flash Superhero Fight Club Poster
<strong><em>Arrow</em></strong> Malcolm Merlyn Superhero Fight Club Poster