A transcript of what Nick Fury is saying:
And there came a day, a day unlike any other, when earth’s mightiest heroes found themselves united against a common threat…to fight the foes no single superhero could withstand. On that day, The Avengers were born.
Nick Fury (Samuel L. Jackson)
What’s the threat the Avengers have o face? The Skrulls, Hulk or some other villain?
Update – The latest Avengers movie trailer;