Avengers: Endgame is the epic conclusion to the first part of the Marvel Cinematic Universe. This is the peak of the Infinity Saga, despite Spider-Man: Far From Home being the official conclusion of that narrative arc. This epic is a direct continuation to Infinity War, where the Avengers lost to Thanos. This is all about those magical space rocks, going through time to find them and then taking the fight back to Thanos once again. It's epic, lengthy and carries conclusive narratives to many of the founding members of this grand cinematic experience.