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The Devil You Know
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21. The Devil You Know

Blue Bloods - Season 8

★ 8.0
📅 May 4, 2018 • ⏱️ 45 min • Season 8, Episode 21

Overview

Frank locks horns with a data-tracking company when they refuse to unlock a terrorist's phone that may hold information regarding upcoming targets. Erin obtains information about an impending murder from a shady source.

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Cast

Steve Schirripa

Steve Schirripa

Anthony Abetemarco
Nellie Campbell

Nellie Campbell

Sofia
Kris Arnold

Kris Arnold

Father Denby
Mike Donovan

Mike Donovan

John Romano Jr.
👤

Suse Farley

Sofia's Mother (uncredited)

Crew

John Behring
👤

All Episodes in Season 8

Cutting Losses

1. Cutting Losses

★ 8.0
Ghosts of the Past

2. Ghosts of the Past

★ 8.0
The Enemy of My Enemy

3. The Enemy of My Enemy

★ 8.2
Out of the Blue

4. Out of the Blue

★ 7.7
The Forgotten

5. The Forgotten

★ 8.0
Brushed Off

6. Brushed Off

★ 8.0
Common Ground

7. Common Ground

★ 6.8
Pick Your Poison

8. Pick Your Poison

★ 8.0
Pain Killers

9. Pain Killers

★ 7.7
Heavy Is the Head

10. Heavy Is the Head

★ 8.0
Second Chances

11. Second Chances

★ 7.6
The Brave

12. The Brave

★ 7.7
Erasing History

13. Erasing History

★ 7.8
School of Hard Knocks

14. School of Hard Knocks

★ 7.8
Legacy

15. Legacy

★ 6.5
Tale of Two Cities

16. Tale of Two Cities

★ 7.6
Close Calls

17. Close Calls

★ 7.7
Friendship, Love, and Loyalty

18. Friendship, Love, and Loyalty

★ 8.2
Risk Management

19. Risk Management

★ 8.2
Your Six

20. Your Six

★ 7.8
The Devil You Know

21. The Devil You Know

★ 8.0
My Aim is True

22. My Aim is True

★ 8.8