Watch: Arrow 3×09 “The Climb” Trailer

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The CW has released the preview trailer for the mid-season finale of Arrow, “The Climb,” which features Ra’s Al Ghul.

“The Climb” airs Wednesday, December 10th at 8pm ET.

Episode synopsis:

RA’S AL GHUL GIVES OLIVER AN ULTIMATUM; DINAH LANCE PAYS LAUREL A VISIT — Nyssa (guest star Katrina Law) returns to Starling City and tells Oliver (Stephen Amell) that her father, Ra’s al Ghul (guest star Matt Nable) has given Oliver 48 hours to find Sara’s killer or the League of Assassins will start killing the citizens of Starling City. Laurel (Katie Cassidy) is stunned when her father (Paul Blackthorne) delivers a very special Christmas gift – her mother, Dinah (guest star Alex Kingston). Meanwhile, Ray (Brandon Routh) tries to make amends with Felicity (Emily Bett Rickards) and Oliver sets a meeting with Ra’s al Ghul. Thor Freudenthal directed the episode written by Jake Coburn & Keto Shimizu (#309).