1st 'Avengers: Infinity War' trailer debuts tomorrow on 'Good Morning America'

Check out the chilling teaser Marvel shared ahead of the big moment.

In the teaser shared on social media, you see fans freaking out in anticipation of this big first clip, while it's made clear that "everything you've experienced, everything you've imagined, it has all been leading to this moment."

The trailer teaser comes a day after Vanity Fair's big cover story on the Marvel Universe, speaking to studio head Kevin Feige.

But in the interview, Feige looked past "Infinity War" and into 2019's "Avengers 4," teasing big changes as your favorite heroes face off against Thanos, the most powerful villain in all the land.

It will “bring things you’ve never seen in superhero films: a finale. ... There will be two distinct periods. Everything before 'Avengers 4' and everything after. I know it will not be in ways people are expecting."

The actors themselves know a lot of changes are coming, including possible deaths.

But before we get ahead of ourselves, "Avengers: Infinity War" hits theaters on May 4, 2018. Then the next "Avengers" the following year!

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