'Once Upon a Time' Season 2 Trailer Features Glimpses of Mulan and Sleeping Beauty (Video)

David Gray/ ABC

ABC debuted the first official season two trailer for Once Upon a Time -- and boy, is it a doozy.

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The 45-second promo featured the very first looks at the bevy of new characters who will be dropping by fairy tale land and Storeybrooke, including Captain Hook (Colin O'Donoghue) and Mulan (Jamie Chung). And is that Prince Phillip (Julian Morris) and Sleeping Beauty (Sarah Bolger)?

If the preview is any indication, you've also got Regina/the Evil Queen (Lana Parilla) desperate to use her magical powers once more, much more Belle (the recently promoted Emilie de Ravin) and the rest of Storeybrooke trying to figure out their next moves.

It's clear that happy endings will be few and far between in the second season, but what exactly is "the new weapon" that will be "unleashed"?

Watch the first season two trailer below:

Once Upon a Time returns Sept. 30 on ABC.

E-mail: Philiana.Ng@thr.com