https://www.cnet.com/news/all-avengers-endgame-trailers-rounded-up-thanos-better-watch-his-back/

The footage shows Iron Man, Captain America, Black Widow, Hawkeye/Ronin, Rocket Raccoon, Bruce Banner, Ant-Man, Thor and the rest of the surviving superheroes preparing for battle.

Each superhero recalls their own origin story and personal tragedies in the trailer, but there's a sense of hope as they band together for one final fight.