Watch Blue Bloods Online: Season 9 Episode 21

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Did Jamie make a mistake?

On Blue Bloods Season 9 Episode 21, she visited Eddie's father, Armin, in prison and things took a gnarly turn. 

Meanwhile, DNA evidence in a murder case found Danny and Baez confronting identical twins with identical alibis. 

How did they manage to find out the truth?

Two Identical Suspects - Blue Bloods Season 9 Episode 21

Elsewhere, Frank learned that Nicky was interviewing for a job at the Justice Coalition, which he always hated. 

Why was he leaving his former post behind?

Use the video above to watch Blue Bloods online right here via TV Fanatic. 

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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.

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Blue Bloods Season 9 Episode 21 Quotes

At my age, if you commit to standing up you have to follow through.

Henry

Danny: THis is so depressing.
Maria: What do you mean? This is Central Park, it's a beautiful day, the boats are cute.
Danny: Yeah, but we're only here because of a dead body.
Maria: You need a vacation.
Danny: Probably find a dead body there too.