WATCH: 'Avengers 2: Age of Ultron' Trailer Leaks A Week Early

The new Avengers trailer has leaked online, nearly a week before its scheduled release.

The trailed features narration by James Spader, who will play the villain in "Avengers 2: Age of Ultron," menacingly talking about puppets and who has strings holding them back.

It was originally supposed debut on next week's "Agents of S.H.I.E.L.D.," but it came out Wednesday night, much to the company's chagrin.

The leaked trailer was yanked, but not before Marvel put up the official version later in the night.