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After an exceptionally heart-wrenching episode of This Is Us Season 4 on March 17, we hope the Pearson family can turn a sour lemon into something resembling lemonade in the finale. The last episode of the current season will air on Tuesday, March 24, and fans are gearing up for an emotional journey. Luckily, NBC dropped the This Is Us Season 4 finale promo trailer to better prepare fans. But quite frankly, the preview for episode 18 — titled “Strangers: Part Two” — just makes us more nervous about what’s to come.

What happened in the ‘This Is Us’ Season 4, Episode 18 promo?

The This Is Us Season 4, Episode 18 promo opens in silence aside from a man singing “Blue Skies” by Irving Berlin. Then brief shots in multiple timelines flash by. First, fans catch a glimpse of Rebecca (Mandy Moore) and Jack (Milo Ventimiglia) sharing a moment together in the past. However, the remainder of the trailer isn’t quite as uplifting.

Next comes a clip of Toby (Chris Sullivan), Kate (Chrissy Metz), and baby Jack from the present day. They are at the NICU at a medical center. However, everyone in the frame seems distraught.

The This Is Us Season 4 finale will also feature Jack Damon (Blake Stadnik) and his wife, Lucy (Auden Thornton), in the future. In the promo, Lucy is in a hospital bed and she is gripping a medical professional’s hand.

Meanwhile, Jack is standing above Lucy with a concerned look on his face. But is Lucy experiencing childbirth, issues with her pregnancy, or neither option? Time will tell.

Regardless, the promo moves on and we return to the present day. As expected, Kevin (Justin Hartley) and Randall (Sterling K. Brown) will have another showdown. They scream at one another outdoors.

Finally, the This Is Us finale promo wraps by unveiling the man singing “Blue Skies.” It’s Dr. Katowsk (Gerald McRaney) — aka Dr. K. That said, it’s difficult to pinpoint when the shot takes place within the Pearson family timeline. He isn’t sporting the same mustache he had when delivering Kate, Kevin, and Kyle. Rather, he has a beard. But even so, Dr. K appears to be singing to a baby in the hospital.

What to expect from the ‘This Is Us’ Season 4 finale

Mandy Moore as Rebecca and Milo Ventimiglia as Jack on 'This Is Us' Season 4
Mandy Moore as Rebecca and Milo Ventimiglia as Jack on ‘This Is Us’ | Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images

When speaking with Glamour, This Is Us executive producer Isaac Aptaker confirmed the season 4 finale will include multiple timelines sprinkled throughout the episode. 

“The finale jumps all over the place,” Aptaker said. “You’re going to have to really sit there with notes and try to keep up and guess where you are in time.”

As we saw in the finale promo, the NBC drama will highlight adult Jack and his wife in the future. We’re also going back to Jack and Rebecca’s past — but how far? In an interview with TV Insider, Fogelman said the Pearsons will celebrate Kate, Randall, and Kevin’s first birthday in 1981. 

Now it appears the Big Three’s first birthday will parallel baby Jack’s in the This Is Us Season 4 finale. “It’s baby Jack’s first birthday, and everybody is descending on L.A. for what’s hopefully a happy celebration,” Aptaker told Entertainment Weekly. “But given that it’s our season finale and our family, there will probably be some hiccups along the way.”

Of course, this also means Kate and Toby’s storyline will continue to be explored in the present day. In the above interview with Glamour, Aptaker hinted the couple will receive a special — an unexpected — story. Then executive producer Elizabeth Berger teased Kate and Toby’s arc even further. 

“It’s a really beautiful episode that is written by [creator] Dan Fogelman himself, and he did an unbelievable job with the script,” Berger said. “The actors are unbelievable in what they’ve done with it, and we can’t wait for everyone to see it. It’s a very exciting episode of TV.”

Meanwhile, Aptaker and Berger hinted we may not find out who Kevin’s fiancée is in the finale, “but we’ll get some big steps forward.” That said, we’ll finally get answers in regards to Kevin and Randall’s feud. But we’ll also receive more burning questions to get us hyped for This Is Us Season 5. 

“I think people are going to be really satisfied,” Aptaker told Entertainment Weekly of “Strangers: Part Two” on March 24. “What exactly happened between Kevin and Randall, we’ll get to that by the end of the finale. And then we’ll be throwing in some new questions that people won’t see coming, because how could they?”

Read more: ‘This Is Us’ Creator Says the Writers Won’t Kill Off This Character

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