"Cold Comfort" – Frank contends with a potentially dirty cop within his ranks when Danny and Baez's investigation into a brutal assault on an NYPD detective reveals evidence the officer may be corrupt. Also, Eddie and Badillo track down the culprits behind the theft of valuable rare works from a celebrated bookstore; Jamie begrudgingly joins Henry as he looks into an old friend's death he deems suspicious; and Erin snoops into the background of a new woman in Anthony's life, on the CBS Original series BLUE BLOODS, Friday, Jan. 28 (10:00-11:00 PM, ET/PT) on the CBS Television Network and available to stream live and on demand on Paramount+.* Pictured: Tom Selleck as Frank Reagan and Donnie Wahlberg as Danny Reagan.