This trailer is the first we've had which features dialogue from the characters, so we were a little surprised to find that Mirren's character has an accent — specifically, an Irish accent that adds a whole other dimension to Cara Dutton, the wife of cattle rancher Jacob (Harrison Ford).Speaking to Vanity Fair earlier this month, Mirren spoke about the decision to make Cara an immigrant.The Oscar winner said: One of the things I very strongly wanted was that she would speak with an Irish accent, not with an American accent. It's always slightly annoyed me with Westerns that you have all these people speaking with modern American accents when in fact so many of them were fairly recent immigrants.Viewers recall the arduous and sometimes heartbreaking journey to settle in America that the German immigrants took in 1883 and we wonder if Cara's own immigrant story will play a part in 1923.At several points in the trailer, we get a glimpse of the ranch that Jacob's brother James (played by Tim McGraw in 1883) began building some 40 years earlier when he and his wife Margaret (played by Faith Hill in 1883) decided to settle in Montana following the death of their daughter Elsa (played by Isobel May in 1883).We even see the exterior of the Dutton's log mansion, and it's unmistakably the same building that is used for John's abode on Yellowstone. So does that mean the Duttons have resided in the same property since the early 20th century and never rebuilt it? Given that the real log cabin which doubles for the Dutton house, the Chief Joseph Ranch in Darby, Montana, was built in 1914, it's not such a crazy concept, but it is still wild to see the ranch viewers associate with John, Beth, and Rip, transported back in time.Deadline confirmed at the time of his casting that the Licence to Kill actor will portray Donald Whitfield, a powerful, self-confident man who acquires the neighboring ranch to the Duttons.He is intimidating and nefarious and is used to getting what he wants, his character bio reads, and from the trailer, it looks like he — along with his righthand man Banner Creighton (Jermone Flynn) — will stop at nothing to get their hands on the Yellowstone ranch land. I want the whole valley, he says at one point, and it looks like the fight over the ranch will be a central storyline in the season, but we can't help but wonder how the Duttons will manage to maintain their land against such as domineering character.The trailer shows a young Native American girl being pulled out of school by someone who appears to be from the tribe. Are you Teonna Rainwater? he asks. In the next shot, he extends a hand to her, and they mount a horse together before herding sheep through a rocky ravine.Is Teonna perhaps the only living ancestor of Thomas Rainwater's (Gil Birmingham) in 1923, meaning that only she can be the one to fight Jacob and his family over the land which he has claimed for his ranch? Yellowstone viewers know that the Duttons' have a longstanding feud with the Broken Rock Indian Reservation, and we can't wait to learn more about its complex origins.It's a blink-and-you-miss-it moment just halfway through the trailer, but it looks like one of the new Duttons will sadly be meeting their maker before the first season of 1923 is over.As audiences will know, only members of the Dutton family are buried on the ranch's land, and next to the three graves, which appear to belong to James, Margaret, and Elsa Dutton (the name Elsa is just visible on the middle headstone), a fourth can be seen. It's marked with a wooden cross rather than a tombstone, which suggests that it's a recent death compared to the others. Someone who appears to be a woman is crouched down by the grave, but it's not clear who it is, meaning that we can't rule any of the Duttons. Rather ominously, the shot of the Dutton family graveyard is immediately followed by Cara remarking: Greed will be the thing that kills us all.The trailer, which comes in at just under two minutes, really does leave us wanting more by ending on what is a truly unexpected shot: a lion bounding towards viewers.Now, a quick Google search does say that mountain lions can be found in Montana, but this feline looks decidedly different from those kinds, leading us to believe that this scene must be plucked from the overseas jaunt teased earlier in the trailer. A shot of a luxury ship, an imposing white mansion, and a safari camp lead us to believe that one of the Duttons will find themselves spending time in an African country — but what are they doing there, and what leads them to come face-to-face with a ferocious lion? 1923 premieres on Paramount+ on December 18.