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Once Upon a Time

Once Upon a Time Season 3 Premiere: What to Expect

The Once Upon a Time Season 3 premiere is just days away, and we're giddy to return to the magical world(s) of our favorite fairy tale show. What can we expect from the premiere, Episode 1: "The Heart of the Truest Believer"? We've gathered all of the biggest clues from the spoilers, sneak peeks, and promos right here.

Official Synopsis

Let's start by seeing what the official synopsis has to say about the episode:

As Emma, Mary Margaret, David, Regina, Mr. Gold and Hook enter Neverland to search for a kidnapped Henry, they're greeted by a school of not-too-friendly mermaids who threaten to end their search before it begins; Henry finds himself on the run from the Lost Boys with another escapee from Peter Pan's encampment; and Neal, recovering from his wounds, travels through the Enchanted Forest with Mulan in an attempt to learn the fates of Emma and Henry.

Wait, you may be asking. Not-too-friendly mermaids? Yep, the premiere will finally feature the finned people of the sea, but these mermaid's ain't Ariel: They're a bit like sirens, actually. And Mermaids aren't the only foe the gang faces on the high seas there's a storm, too.

Also worth noting: Neal isn't just with Mulan; Sleeping Beauty and her prince are also there.

Sneak Peeks

In this sneak peek of the episode, Emma and Hook share a bonding moment when he gives her a gift that symbolizes their mutual connection to Nealfire. Question: Why would Rumple be "getting to" Emma? You'll have to watch the episode to find out!

Speaking of Rumple, in this sneak peek he's on his own in the forest, where he has a run-in with one of the Lost Boys that takes a very interesting turn at the end.

Other Notable Spoilers

Here are some more things to know about the premiere: We'll get more info on the home, office and there will be conflict aboard the Jolly Roger. Duh. Oh, is that not enough? We've gathered some more tantalizing teases about the episode here.

Are you excited for the premiere? Sound off in the comments below!

Catch the Once Upon a Time Season 3 premiere on September 29, 2013 at 8 p.m. ET/PT on ABC.

Rebecca Martin is an Associate Editor at Wetpaint Entertainment and our resident Game of Thrones, Pretty Little Liars, and genre TV expert. Follow her on Twitter and Google+!