Blue Bloods S06 E12 Cursed

"Honor. Justice. Family. It’s in their blood."

When a local mobster is gunned down in his car, Danny and Baez try to get information from the mob’s low-level errand boy they find tied up in the trunk before the gang retaliates. An NYPD officer asks for a new shield number to honor her late father, but Frank is conflicted because it’s the same number as his deceased son's.