Can Frank Help Guest Star Ed Asner on 'Blue Bloods'? (PHOTOS)

Meredith Jacobs

While most of the Reagan family will be doing what they usually do in the March 6 episode of Blue Bloods, one of them will be on the other side of an investigation.

In "Vested Interests," Frank (Tom Selleck) debates whether to aid and protect his old friend, Chuck Kennedy (guest star Ed Asner), after his home is invaded. Danny (Donnie Wahlberg) and Baez (Marisa Ramirez) look into the suspicious circumstances surrounding the death of hotel employee believed to be a suicide. Plus, Erin (Bridget Moynahan) asks Anthony (Steven Schirripa) to make a deal with a man who knows secrets about the current D.A.

Treat Williams Looks Back on His 'Blue Bloods' & 'Chicago Fire' Roles

Treat Williams Looks Back on His 'Blue Bloods' & 'Chicago Fire' Roles

Plus, the actor shares his hopes for another season of 'Chesapeake Shores' and gets nostalgic about 'Everwood.'

Meanwhile, Jamie (Will Estes) ends up under investigation after his police vest is found on a perp.

Click through the gallery above for a look at Asner's guest spot and more.

Blue Bloods, Fridays, 10/9c, CBS