LOS ANGELES — Marvel enthusiasts, get ready for another exhilarating update as a fresh teaser for “Avengers: Doomsday” has been unveiled. This time, fans are in for a treat as it showcases the thrilling collaboration of two heroes who have never before graced the screen together.

This intriguing sneak peek heralds the return of the Wakandans, joined by the Talokans under the leadership of Namor, characters that audiences were captivated by in “Black Panther: Wakanda Forever.”

The teaser kicks off with the resonant voice of Shuri, declaring, “The King has his duties to prepare our people for the afterlife. I have mine.” Her words set the stage for what promises to be an epic adventure.

As Shuri strides purposefully through a vast desert landscape, she is accompanied by the formidable M’Baku. Their journey takes a surprising turn as they encounter a face that is both familiar and unexpectedly out of place, sparking curiosity and excitement.

This encounter wraps up with a light-hearted and humorous exchange, leaving audiences eagerly anticipating the dynamic interplay between these iconic characters.

“King M’Baku of Wakanda. Ben Yancy Street between Broome and Grand.”

Ben Grimm, better known as The Thing from “The Fantastic Four,” makes his debut in the trailer as well.

As with the previous three teasers, the clip closes on a countdown to the film’s release date.

Speculation is already flooding the internet, and directors Joe and Anthony Russo are fueling the buzz. The duo posted a cryptic message on social media, urging fans to look closer.

“What you’ve been watching for the last four weeks … are not teasers. Or trailers. They are stories. They are clues … Pay attention.”

So, what secrets are hiding in these recent teasers? And what exactly are the Russos trying to tell us?

One thing is for certain. “Avengers: Doomsday” releases in theaters Dec. 18.

The Walt Disney Company is the parent company of Marvel Studios and this ABC station.