Avengers: Infinity War Trailer Breakdown - 23 Things You Need To See
3. Cap Vs Thanos
If there's any single money shot in the trailer, a HOLY SH*T part, then it's at the end, with Thanos attacking Captain America, who is using every ounce of strength he has to stop the attack (and Thanos still only has two Stones at this point, though that could be something they're deliberately withholding).
Cap is one of the characters we should be most worried about, since it's unlikely Chris Evans will be sticking around after Avengers 4 but, again, it's hard to believe they'd ruin a death here. Nonetheless, it's a huge moment and looks terrible for Steve, while Thanos really seems to be enjoying himself.
It also shows us, for the first time, that Thanos himself heads to Wakanda and joins the battle, so we can assume this is really late on in the movie.