To read more onAvengers: Infinity War, pick up the new issue of Entertainment Weekly on stands Friday.

The river is fake, of course.

The savanna is a lot closer to Savannah, Georgia, than any plains of Africa.

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Credit: Marvel

But the looming rainstorm happens to be real.

Chris Hemsworth lowers his battle-ax and looks off into the distance, wondering aloud if he saw lightning.

The God of Thunder is in a race against his own superpower.

MARVEL’S AVENGERS: INFINITY WARChadwick Boseman as T’Chaka/Black Panther

©Marvel Studios 2018

How much for the gun?

the furry dealmaker asks, admiring the firepower clutched by Buckys mechanical limb.

Its not for sale.

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Chuck Zlotnick/©Marvel Studios 2018

Okay, how much for the arm?

(He has a weird thing about prosthetics.)

In some ways, theyve swapped styles.

MARVEL’S AVENGERS: INFINITY WARJosh Brolin as Thanos

©Marvel Studios 2018

Thor has gotten a clean-cut trim, while Cap is sporting the ragged locks and beard.

Ill be like, Short hair now?

Good choice, Evans says, while miming a right hook against an invisible Outrider.

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Chuck Zlotnick/©Marvel Studios 2018

And Ill go, Yours too.

Very rugged, Hemsworth says.

Theyre still workshopping it as they go back in front of the cameras.

EWs Day 1 on the set comes to an abrupt and muddy end.

Maybe that exchange between Cap and Thor will make it in, maybe it wont.

The thing aboutInfinity Waris, you cant really be sure what will survive.

That doesnt mean there wont be any more movies.

The real danger is lack of surprise.

I think the trouble is the endlessness.

Between Feige and the Russos, Downey says the cast feels their alter egos are in capable hands.

Well, great, lets get definitive for a change!

Were like a family now.

Which one of us bites it and when?

Some heroes may simply get to ride off into the sunset.

Others may sacrifice themselves or fall in battle.

Its safe to say we will say farewell to people, McFeely promises.

So, some things must end.

What he feared most happened, and the planet and everybody on it basically went extinct.

He vowed not to let that happen again.

He thinks he sees the universe going down the tubes.

He thinks he sees life expanding outward unchecked.

That will bring ruin, he believes, to the universe and to that life.

But to do that, he wants to kill off the other half.

The man also loves his work.

All the kind of grabbing-of-the-moon because of the gems, and all …?

the actor says with a deep laugh.

Thats the fun stuff.

Hes on a hunt, Joe Russo says.

Were using a bit of a 90s heist genre component.

Thanos is on a smash-and-grab, and everybodys trying to catch up the whole movie.

Its doubtful he can survive long without it.

Vision is a living MacGuffin, Anthony Russo says.

Cap makes the decision to bring [Vision] here to Wakanda, Anthony Russo says.

Earth is making its last stand to keep the stone from Thanos.

Its the best place to make your last stand.

Its never been conquered, but that doesnt mean it hasnt been challenged, Boseman says.

She just got used to opening up to foreigners; now shes fighting alongside talking raccoons and aliens.

Change is scary, the actress says.

But I think the learning curve is to become a citizen of the world versus a citizen of Wakanda.

The whole universe seems like a good place to start.

They trust each other, Boseman says of Panther and Cap.

His shield was already made from vibranium anyway.

So its just an extension of what he already had.

This time, actually giving it to him, as opposed to… Boseman shrugs.

The materials for the old shield were likely taken, not offered.

Me actually giving it to him is a testament to our relationship and trust.

Trust is all some of the heroes have left.

I think its been a dark time.

As with Black Panther, Cap is one of the only people Natasha Romanoff still trusts.

Its always felt like Natasha uses her cynicism as a defense mechanism.

She weaponizes it for survival, Evans says, sitting with Johansson during a break.

I think Steve is a little newly calloused in the ways of the world.

But Natasha is always going to be a couple steps ahead of him in terms of experience and knowledge.

Theyve leaned on each other for different reasons.

Its reinforced the friendship.

Somehow, despite their differences, they get along.

Most superhero origins follow a similar pattern.

The good guy discovers a power, then figures out how to wield it for good.

Theyre fractured at the start of the movie, Joe Russo says.

Thanos is a virtually indestructible character, which makes him an extremely difficult character to fight.

Thats really the question.

Thats should be Falcon with a capital F: Anthony Mackies mechanical-winged hero.

(I hinted at this on Twitter back on June 2, now heres what that actually meant.)

Mackie says his character isnt comfortable in Wakanda.

Everybody went their separate ways.

Now, as he puts it, Marvels heroes are trying to get the band back together.

But after removing his own hook, Mackie looks into the fish with concern.

He asks for the pliers on his tackle box.

This fish has been caught before.

Theres another hook from a broken line embedded in its throat.

Mackie tries to remove it but cant.

Lucky I caught him.

I should just keep him and cook him, the actor says.

If it aint killed him yet, it aint gonna kill him, Mackie says.

For Marvels superheroes, thats the best they can hope for, too.