Arrow (2012– )
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The Scientist 

After an impossible break in at Queen Consolidated, CSI Barry Allen comes to Starling to help with the investigation, Sin asks Roy for help so Thea tags along.

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Cast

Episode cast overview, first billed only:
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Laurel Lance (credit only)
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Sin
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Storyline

A seemingly impossible robbery at Queen Consolidated's Applied Sciences Division brings Central City police scientist Barry Allen to town. Citing a similar case back home, Barry offers to help Oliver and team with the investigation. Oliver senses there is more to Barry than meets the eye, but he's distracted by the similarities between this current case and something that happened on the island. Meanwhile, Felicity takes a liking to Barry, which doesn't go unnoticed by Oliver. Sin asks Roy for help when a friend of hers goes missing. Roy is surprised when Thea not only encourages him to help, but joins the search. Unfortunately, Sin's friend is connected to Brother Blood, and their search ultimately gets one of them seriously injured. Written by Salman Ali

Plot Summary | Plot Synopsis


Certificate:

TV-14 | See all certifications »
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Details

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Release Date:

4 December 2013 (USA)  »

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Aspect Ratio:

16:9 HD
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Did You Know?

Trivia

Barry tells Felicity a couple of times that he's not a very good dancer; however, the actor who plays Barry, Grant Gustin, is an incredibly talented dancer. He started tap dancing when he was 8 years old. He's also a talented singer and played the recurring role of Sebastian Smythe on the third season of Glee (2009). Grant had originally auditioned for a role as a tap dancer, but he didn't get the part. See more »

Goofs

When Barry discovers the sedative being used in Blood's mirakuru formula is ketamine, his computer screen is shown with a diagram of the substance's molecular structure. What is shown here is very close to what medical grade ketamine's chemical formula looks like, but what is shown is the precursor to ketamine. Medical grade ketamine is actually racemic ketamine, the chemical formula shown on the screen is for racemic ketamine's enantiomer, known as (S) ketamine. A substance that is racemic has the same chemical makeup and structure as the original substance, but its structure is the mirror opposite, so in other words it looks like an upside down version of the original chemical diagram. See more »

Quotes

Felicity Smoak: Mrs. Queen, welcome back to the company.
Moira Queen: Thank you.
Felicity Smoak: You look fabulous. Really, better than ever. Did you do something to your hair?
Moira Queen: Yes. I shampooed it without eight woman and a guard watching me.
Felicity Smoak: Is it okay to laugh? Because I was ordered not say anything about you being in prison just to avoid any awkward exchanges.
Oliver Queen: Like that one.
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Connections

Features The Flash (2014) See more »

Soundtracks

Arrow End Theme
Composed by Blake Neely
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