Blue Bloods - Season 8 - The Devil You Know (Episode 21)
Plot: 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
Tom Selleck
Donnie Wahlberg
Bridget Moynahan
Will Estes
Len Cariou
Vanessa Ray
Abigail Hawk
Marisa Ramirez
Sami Gayle
Steve Schirripa
Nellie Campbell
Kris Arnold
Mike Donovan
John Behring
Allie Solomon