Blue Bloods: 8x21
The Devil You Know
Frank locks horns with a data-tracking company when it refuses to unlock a terrorist’s phone that may hold information regarding upcoming targets; Erin obtains information about an impending murder from a shady source; a woman kidnaps a baby.
8 - 1Cutting Losses Sep. 29, 2017
8 - 2Ghosts of the Past Oct. 06, 2017
8 - 3The Enemy of My Enemy Oct. 13, 2017
8 - 4Out of the Blue Oct. 20, 2017
8 - 5The Forgotten Oct. 27, 2017
8 - 6Brushed Off Nov. 03, 2017
8 - 7Common Ground Nov. 10, 2017
8 - 8Pick Your Poison Nov. 17, 2017
8 - 9Pain Killers Dec. 01, 2017
8 - 10Heavy Is the Head Dec. 08, 2017
8 - 11Second Chances Jan. 05, 2018
8 - 12The Brave Jan. 12, 2018
8 - 13Erasing History Jan. 19, 2018
8 - 14School of Hard Knocks Feb. 02, 2018
8 - 15Legacy Mar. 02, 2018
8 - 16Tale of Two Cities Mar. 09, 2018
8 - 17Close Calls Mar. 30, 2018
8 - 18Friendship, Love, and Loyalty Apr. 06, 2018
8 - 19Risk Management Apr. 13, 2018
8 - 20Your Six Apr. 27, 2018
8 - 21The Devil You Know May. 04, 2018
8 - 22My Aim is True May. 11, 2018
8 - 23Episode 23 May. 18, 2018