Blue Bloods Season 8 Episode 21

Blue Bloods Season 8 Episode 21

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.

Serie: Blue Bloods

Episode Title: The Devil You Know

Air Date: 2018-05-04

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