It looks like The Blacklist Season 4 Episode 17, the second hour of the two-hour return, will take a dive into the past.
According to these preview photos, Mr. Kaplan is hanging out with Liz's mom.
And is that Red's former associate from The Blacklist Season 1 making a return?
Get excited with these pictures from "Requiem."
Mr. Ketch decides to clean - The Blacklist Season 4 Episode 17
Mr. Ketch puts on some gloves. Is this the beginning of her "cleaner" status?
Kate and Katarina - The Blacklist Season 4 Episode 17
It looks like Mr. Ketch and Katarina were friends back in the day. So Kate has far more of a connection to Liz than we may have realized.
Peeking down the stairs - The Blacklist Season 4 Episode 17
Mr. Kaplan must hear something downstairs. But what could it be? Is it the first time she meets Red?
Katarina holds her baby - The Blacklist Season 4 Episode 17
Katarina looks happy with the baby. Is that Liz she is holding?
Mr. Ketch looks happy - The Blacklist Season 4 Episode 17
Mr. Ketch seems so happy. It's hard to believe where her life ended up...
Mr. Ketch looks concerned - The Blacklist Season 4 Episode 17
Something is seriously wrong. Is it little Liz? What is happening?