'Once Upon A Time' Season 3 Spoilers: 'Belief Impacts Our Characters'

This Sunday, Sept. 29, will see the season three premiere of ABC's hit show "Once Upon a Time." Executive producers Edward Kitsis and Adam Horowitz recently revealed a few spoilers for the premiere and upcoming season.

The characters will see a new setting as the journey to Neverland. In an interview with The Hollywood Reporter, Kitsis discussed what that means for the cast.

"We wanted to focus on the core characters and we thought Neverland was a place where you don't grow up, then you have to confront your past. Our inspiration was the idea that these characters would have to return to who they were before the curse in order for them to achieve this. At the same time, we wanted them to have to dig deeper into what everything means," the executive producer said.

Speaking to The Hollywood Reporter, Adam Horowitz explained what he things the overarching theme of season 3 will be.

"I would say is that belief is really kind of the theme of the season so far, and we're seeing how belief impacts each one of our characters," the executive producer said.

Season three will be split into two mini seasons each containing 11 episodes. Horowitz commented on that decision.

"If it is impacting [the story], we hope [it's] in a really positive way," he said, adding that the mini seasons are "mini seasons that are hopefully thematically connected and building to one big finish."

"Once Upon A Time" airs this Sunday, Sept. 29 at 8 p.m. on ABC.