Dark Waters: Watch the Arrow Midseason Finale Trailer

“Dark Waters” airs Wednesday, December 9 at 8:00pm ET/PT on The CW

The CW has just released the trailer for next week’s Arrow midseason finale. Titled “Dark Waters,” episode 4×09 is officially described as follows:

“After the city is attacked again, Oliver makes a bold move against HIVE. Malcolm checks in on Thea and leaves her with a warning. Things take a horrible turn when Damien Darhk (guest star Neal McDonough) retaliates in a brutal manner at Oliver’s mayoral holiday party.”

Arrow stars Stephen Amell as Oliver Queen, Katie Cassidy as Dinah “Laurel” Lance, David Ramsey as John Diggle, Willa Holland as Thea Queen, Emily Bett Rickards as Felicity Smoak, John Barrowman as Malcom Merlyn, with Paul Blackthorne as Detective Lance. The series is executive produced by Greg Berlanti, Marc Guggenheim, Andrew Kreisberg and Sarah Schechter.

“Dark Waters” will premiere next Wednesday, December 9 at 8:00pm ET/PT on The CW. If you missed an episode of Arrow or just need a refresher on what happened you can read our weekly recaps to catch up!

Arrow isn’t the only show in the small screen DC Universe hitting a midseason finale next week. Click here to check out the trailer for The Flash’s midseason finale.

Arrow 4x09

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Arrow -- "Dark Waters" -- Image AR409A_0149b.jpg -- Pictured (L-R): Katie Cassidy as Laurel Lance and Emily Bett Rickards as Felicity Smoak -- Photo: Diyah Pera/ The CW -- ÃÂ© 2015 The CW Network, LLC. All Rights Reserved.
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Arrow -- "Dark Waters" -- Image AR409B_0042b.jpg -- Pictured (L-R): Charlotte Ross as Donna Smoak and Paul Blackthorne as Detective Quentin Lance -- Photo: Diyah Pera/ The CW -- ÃÂ© 2015 The CW Network, LLC. All Rights Reserved.
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Arrow -- "Dark Waters" -- Image AR409B_0071b.jpg -- Pictured (L-R): David Ramsey as John Diggle, Echo Kellum as Curtis Holt and Chenier Hundal as Paul -- Photo: Diyah Pera/ The CW -- ÃÂ© 2015 The CW Network, LLC. All Rights Reserved.
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Arrow -- "Dark Waters" -- Image AR409B_0076b.jpg -- Pictured (L-R): Echo Kellum as Curtis Holt, Chenier Hundal as Paul and Emily Bett Rickards as Felicity Smoak -- Photo: Diyah Pera/ The CW -- ÃÂ© 2015 The CW Network, LLC. All Rights Reserved.
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Arrow -- "Dark Waters" -- Image AR409B_0224bc.jpg -- Pictured (L-R): Stephen Amell as Oliver Queen and Emily Bett Rickards as Felicity Smoak -- Photo: Diyah Pera/ The CW -- ÃÂ© 2015 The CW Network, LLC. All Rights Reserved.
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Arrow -- "Dark Waters" -- Image AR409B_0320b.jpg -- Pictured (L-R): Neal McDonough as Damien Darhk and Stephen Amell as Oliver Queen -- Photo: Diyah Pera/ The CW -- ÃÂ© 2015 The CW Network, LLC. All Rights Reserved.
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Arrow -- "Dark Waters" -- Image AR409B_0359b.jpg -- Pictured (L-R): David Ramsey as John Diggle, Willa Holland as Thea Queen, Neal McDonough as Damien Darhk and Emily Bett Rickards as Felicity Smoak -- Photo: Diyah Pera/ The CW -- ÃÂ© 2015 The CW Network, LLC. All Rights Reserved.