Erin takes a chance on John Romano's information in order to save a life on Blue Bloods. "The Devil You Know" is the 21st episode of the show's eighth season.

Unrated
Photo Credit:
CBS
Show:
Blue Bloods
Episode:
Blue Bloods Season 8 Episode 21: "The Devil You Know"
Character:
Erin Reagan Boyle
Related Photos:
Blue Bloods Photos, Blue Bloods Season 8 Episode 21 Photos, Erin Reagan Boyle Photos
Location:
New York, New York
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Blue Bloods Season 8 Episode 21 Quotes

I'll allow that you're half right about a very complicated subject, and I'll go take another run at Martin Post.

Kelly

They couldn't put out a joint statement saying the sky is blue.

Sid