The movie picks up where Breaking Dawn Part 1 left off, with Bella Swan (Kristen Stewart) transformed into a vampire. The Volturi, led by Aro (Michael Sheen), Caius (Danilo Bursian), and Jane (Tanya Roberts), believe that Bella's transformation is unlawful, as she was still human during childbirth. The Cullens, along with their allies, prepare for a showdown with the Volturi.