Avengers Endgame

 Roight, time to watch the conclusion of Thanos's little snap then, in the second finale movie of the MCU wave 3, Endgame from 2019.

And if everyone that died in the first movie, actually stays dead... because... Marvel.

In 2018, 23 days after the disasterous battle, Tony Stark and Nebula are saved in deep space by Captain Marvel, who brings them to the other surviving Avengers.  They located Thanos on an unihabited planet, and want to use the stones to reverse his actions.  But Thanos has seemingly destroyed them, causing Thor to decapitate him in rage.

Jumping five years forward, Ant-Man escapes from the Quantum realm, where he was when the snap happened and he couldn't get back out.  But for him, it have only been 5 hours instead of 5 years.  They theorize the Realm allows time travel, and decide to try and go in the past to retrieve the stones there in order to reverse the snap.  Stark, Banner and Rocket build a time machine, as the latter then go and recruit a depressed and overweight Thor.  Black Widow enlists Hawkeye, who now goes as a vigilante under the name Ronin after his family had been erased.

As the Avengers scatter through time, they go out and seek the Infinity stones at various places in the timeline, knowing that their actions won't change their line, but create alternate timelines instead.  Banner convinces the Ancient One in the past they will return the stones to their location in those realities after they managed to save their own.  In a past incarnation of Asgard, Thor also manages to retrieve Mjolnir, that was destroyed in Infinity Wars.  But when Hawkeye and Black Widow want to retrieve the Soul stone, Natasja sacrifices herself in order for Clint to get the stone.

Using a gauntlet that Stark, Banner and Rocket build, they place the stones in it to undo the snap, as Banner is the most resistant to the radiation it will cause.  But as the disintegration is about to be undone, Thanos of the past arrives with his army to stop them, informed by a switched out Nebula.  But the others all arrive, the Wakanda, the Sorcerers with Strange and Wong, the Ravagers as well as the missing heroes that didn't die in this reality.  Thanos tries to use the stones to reset the universe and create a new one, but Stark prevents this, at the cost of his own life.  But his final snap disintegrates Thanos and his army, saving reality from the mad tyrant.

After the funeral of Tony, the Avengers set out to place the stones back where they belong, but Captain America doesn't return.  They find Steve sitting on a bench a short distance away, aged.  He has chosen to remain in the past and live his days with Peggy Carter instead, and now came to this moment in time to pass his shield on to The Falcon to become the new Captain America in his wake...

And so the saga ends, with four dead heroes in the end to go to the new phase 4: Vision, Black Widow, Iron Man and in a way Gamora, though the latter has been replaced by an alternate reality version.  Not as heavy as it was in the comics, but like Civil War, this was a seriously souped down version in the end...

Worth the watch, but by far not the epic conclusion that the MCU fanboys want us to believe.  They should start reading if you ask me...