Arrow Season 3 Episode 21 Al Sah-him ( Air Date 2015-04-29 ) Genre Crime, Drama, Action & Adventure category. Overview "Ra's sets out to transform Oliver into his perfect heir. Meanwhile, Nyssa and Laurel draw closer, but their mentor/student relationship is threatened when Ra's sends men to bring his errant daughter back to Nanda Parbat..".
Arrow Season 3 Episode 21 Al Sah-him
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- Watch: Arrow Season 3 Episode 21 Al Sah-him on CWR-CRB
- Stars: Stephen Amell, David Ramsey, Rick Gonzalez, Juliana Harkavy, Katherine McNamara, Ben Lewis, Joseph David-Jones, Katie Cassidy
- Director: Mark Bunting, Beth Schwartz, Marc Guggenheim, Greg Berlanti, Blake Neely, Ken Shane
