Fridays 10:00 PM on CBS
Watch Blue Bloods Season 4 Episode 1 online via TV Fanatic with over 2 options to watch the Blue Bloods S4E1 full episode. Affiliates with free and paid streaming include Amazon and iTunes.

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Episode Details

Blue Bloods Season 4 Episode 1: "Unwritten Rules"

When an NYPD police officer is killed during an armed robbery, Frank makes it his mission to see the guilty parties brought to justice but tensions rise at home when Erin drops the charges due to lack of evidence on the season 4 premiere of Blue Bloods.

Blue Bloods Season 4 Episode 1 Quotes

We decline to charge suspects every day. Many of them are guilty but you still need evidence.


Jamie: I thought I was just another cop.
Frank: You are. You're also a lawyer and you'll understand the why of this more than most.