Avengers: Endgame is releasing in 9 days. And Marvel, which had made us wait for months for the first trailer is now dropping them every week. 

Source: News18

The latest one starts with Nick Fury's voice from The Avengers, where he speaks about the idea of heroes and it being an old fashioned notion. 

Source: Digital Spy

The next shots then come from the film trilogies of the big 3: Iron Man, Captain America and Thor, with background voices basically testifying to the meaning they hold for this world. 

A visionary, a genius ensuring freedom around the globe.
A symbol to the nation. A hero to the world. 
A beacon of hope, shining out across the stars. 

We then move on to the Guardians of the Galaxy, Dr. Strange, Ant-Man, Spider-Man and Black Panther and go through a brief recap of how they all became heroes. 

But it's really Tony Stark looking at the Avengers symbol that gives you the chills.

Source: YouTube

The trailer then takes you through the plethora of MCU movies that have led to this very moment - the moment where everything they have done for the world goes in vain if they don't give everything the have got in this very moment.

Source: reddit

They are in the endgame now. 

We also get a tiny glimpse of Iron Man's new weapon. 

Source: YouTube

And before the trailer ends, Captain America says that they have one promise they have to keep. 

So in the immortal words of Tony Stark: 

If we can't protect the Earth, you can be damn sure, we'll avenge it. 
Source: YouTube

And we leave the clip just the way we started - with the big three squaring up against Thanos. 

Source: YouTube

You can watch the trailer here:

 Avengers: Endgame releases on the 26th of April.