Star Wars: The Last Jedi Official Trailer Breakdown - 28 Things You Need To See
28. Raw, Untamed Power
The first teaser opened with Rey, so now it's the turn of Kylo Ren and the Dark Side.
It kicks things off with a shot of Kylo looking out on a First Order base - you can make out the walkers in the shot too -, in a similar fashion to those shots of him in The Force Awakens (only sans helmet and ominous red lighting). We then see him leading a pack of Snowtroopers (or some version), reiterating that he's running things here (on Snoke's behalf, at least). It's here Snoke begins his speech: "When I found you, I saw raw, untamed POWAH."
The Force Awakens established some major parallels between Kylo Ren and his grandfather, Darth Vader, and this trailer definitely continues that. The above shot gives off some heavy Anakin/501st Legion vibes, and also sems to take place on the same world we see the Falcon later.