Arrow does battle with the Acolyte on Arrow. "The Scientist" is the ninth episode of the show's second season.
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Oliver must work with Barry to solve a mystery on Arrow. "The Scientist" is the ninth episode of the show's second season.
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A new investigator shows up to figure out who robbed Queens Consolidated on Arrow. "The Scientist" is the ninth episode of the show's second season.
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Can the police find answers in the Queens Consolidated robbery on Arrow? "The Scientist" is the ninth episode of the show's second season.
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Felicity, Oliver, and Diggle find out about the robbery at Queens Consolidated on Arrow. "The Scientist" is the ninth episode of the show's second season.
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What does Diggle want from Oliver on Arrow? "The Scientist" is the ninth episode of the show's second season.
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Can the Queens Consolidated team figure out the impossible robbery on Arrow? "The Scientist" is the ninth episode of the show's second season.
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Oliver and Moira must figure out an impossible robbery on Arrow. "The Scientist" is the ninth episode of the show's second season.
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Oliver works with police scientist Barry Allen on Arrow. "The Scientist" is the ninth episoe of the show's second season.
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Grant Gustin premieres here on Arrow. He portrays Barry Allen.
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We're in Russia with Oliver and Felicity in this Arrow scene. It is from the episode "Keep Your Enemies Closer."
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How will Oliver react when Laurel takes over the case against Moira on Arrow? "State v. Queen" is the seventh episode of the show's second season.
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Arrow Quotes

There are people in this world who deal only in extremes. It's naive to think that anything less than extreme measures will stop them.

Amanda

Laurel: Helena, you don't have to do this.
Helena: Yes, I do. Because once you let the darkness inside, it never comes out.