Five years ago, we lost. All of us. We lost friends. We lost family. We lost a part of ourselves. Today, we have a chance to take it all back. You know your teams, you know your missions. Get the stones, get them back. One round trip each. No mistakes. No do-overs. Most of us are going somewhere we know, that doesn't mean we should know what to expect. Be careful. Look out for each other. This is the fight of our lives. And we're going to win. Whatever it takes. Good luck.
— Avengers: Endgame
by Anthony and Joe Russo, Avengers Endgame.