First Clip from Arrow Episode 3.21, Al Sah-him

The CW has released the first clip for this week’s episode of “Arrow,” #3.21 in the series, which you can check out in the player below. Titled “Al Sah-him,” the episode is officially described as follows:

“Oliver (Stephen Amell) goes through a rigorous transformation. The League of Assassins sets their sites on Nyssa (guest star Katrina Law), who is back in Starling City training Laurel (Katie Cassidy). When Nyssa realizes they are coming, she arms up to face them alone but Laurel asks Felicity (Emily Bett Rickards) and Diggle (David Ramsey) to help protect her new friend.”

Directed by Thor Freudenthal with story by Beth Schwartz and teleplay by Brian Ford Sullivan & Emilio Ortega Aldrich, “Al Sah-him” is set to air on April 29. “Arrow” airs Wednesdays at 8 P.M. EST on The CW.

“Arrow” stars Stephen Amell as Oliver Queen/Arrow, 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 and Paul Blackthorne as Detective Lance. It is executive produced by Greg Berlanti, Marc Guggenheim, Andrew Kreisberg and Sarah Schechter.

You can catch up on season 3 of “Arrow” by reading our recaps by clicking here.

Arrow 3x21

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Arrow -- "Al Sah-Him" -- Image AR321A_0009b -- Pictured (L-R): Katrina Law as Nyssa Al Ghul and Katie Cassidy as Laurel Lance -- Photo: Dean Buscher/The CW -- ÃÂ© 2015 The CW Network, LLC. All Rights Reserved.
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Arrow -- "Al Sah-Him" -- Image AR321A_0024b-- Pictured (L-R): Katrina Law as Nyssa Al Ghul, Katie Cassidy as Laurel Lance and David Ramsey as John Diggle -- Photo: Dean Buscher/The CW -- ÃÂ© 2015 The CW Network, LLC. All Rights Reserved.
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Arrow -- "Al Sah-Him" -- Image AR321A_0231b -- Pictured (L-R): David Ramsey as John Diggle and Katie Cassidy as Black Canary -- Photo: Dean Buscher/The CW -- ÃÂ© 2015 The CW Network, LLC. All Rights Reserved.
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Arrow -- "Al Sah-Him" -- Image AR321A_0247b -- Pictured (L-R): David Ramsey as John Diggle and Katie Cassidy as Black Canary -- Photo: Dean Buscher/The CW -- ÃÂ© 2015 The CW Network, LLC. All Rights Reserved.
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Arrow -- "Al Sah-Him" -- Image AR321A_0277b -- Pictured (L-R): David Ramsey as John Diggle and Katie Cassidy as Black Canary -- Photo: Dean Buscher/The CW -- ÃÂ© 2015 The CW Network, LLC. All Rights Reserved.
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Arrow -- "Al Sah-Him" -- Image AR321B_0080b -- Pictured (L-R): David Ramsey as John Diggle, Emily Bett Rickards as Felicity Smoak and Katie Cassidy as Laurel Lance -- Photo: Cate Cameron/The CW -- ÃÂ© 2015 The CW Network, LLC. All Rights Reserved.
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Arrow -- "Al Sah-Him" -- Image AR321B_0222b-- Pictured (L-R): David Ramsey as John Diggle, Emily Bett Rickards as Felicity Smoak and Katie Cassidy as Laurel Lance -- Photo: Cate Cameron/The CW -- ÃÂ© 2015 The CW Network, LLC. All Rights Reserved.
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Arrow -- "Al Sah-Him" -- Image AR321B_0243b -- Pictured (L-R): David Ramsey as John Diggle and Emily Bett Rickards as Felicity Smoak -- Photo: Cate Cameron/The CW -- ÃÂ© 2015 The CW Network, LLC. All Rights Reserved.
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Arrow -- "Al Sah-Him" -- Image AR321B_0342b -- Pictured (L-R): David Ramsey as John Diggle and Emily Bett Rickards as Felicity Smoak -- Photo: Cate Cameron/The CW -- ÃÂ© 2015 The CW Network, LLC. All Rights Reserved.