'This Is Us' season 1, episode 12 latest updates: New episode to feature backstory on the birth of the triplets

(Facebook/ NBCThisisUs)"This is Us" episode 12 to be an emotional one

Episode 12 of NBC's "This Is Us," titled "The Big Day," will be both exciting and very emotional at the same time as Rebecca (Mandy Moore) and Jack (Milo Ventimiglia) welcome their triplets into the world. It's a backstory that will reveal the events that transpired during the day the triplets were born, to include the death of the third baby and another infant who was left in the fire station.

In the opening of the latest episode promo, Rebecca is seen happily talking to the babies inside her womb, while Jack takes a video of her. Rebecca is beaming with joy and expresses her love for her babies even though she has not laid eyes on them yet. But the supposedly happy day for the couple turns sour as sad news regarding their third baby breaks their hearts.

The promo shows Jack during an emotional moment with Dr. Nathan Katowsky (Gerald McRaney) also known as Dr. K, as he reveals that the couple lost the third baby. Dr. K reassures Jack that he has two more perfectly healthy children and that he should meet them. In another scene, Jack is seen comforting Rebecca as she says she feels like they were meant to have three kids. Jack replies, "What if we still are?"

Meanwhile, in a recent interview with Entertainment Tonight, Moore had nothing but good things to say about her on-screen husband. "He's such a special guy, it's really not hard to have to just love him," Moore revealed. "I feel very safe. I feel very, like, protected with him. I've never really felt that with somebody I've worked with before, so I feel incredibly lucky every day just to have this job, but then to get to work with him every day, too. I know I'm in good hands."

In the same Entertainment Tonight report, Chrissy Metz, who plays Kate in the TV series, described the upcoming episode saying, "If I think about it, I will cry right now." The 36-year-old actress also added, "I saw a screening of it last week and I almost had to excuse myself. I need to not ever be around people when I watch. It's so beautiful."

"This Is Us" season 1 episode 12 will air on Tuesday, Jan. 17, 9 p.m. EDT on NBC.

Copyright © 2016 Ecumenical News