'Once Upon A Time' season 5 spoilers: What awaits Prince Charming in the Underworld?

The latter half of "Once Upon A Time" season 5 will mostly take place in the Underworld, where individuals with unfinished business dwell. Series star Josh Dallas a.k.a. Prince Charming found it best to orient viewers about the setting prior to the midseason premiere.

"It's a place that, once they get there, they're going to discover that possibly some of these people can be saved and brought out of there, because maybe they're misplaced in this world," the actor told Entertainment Weekly.

As fans may have already heard, "Once Upon A Time" season 5 will bring back a bunch of characters from the previous seasons, including Cruella de Vil and Peter Pan. The season will also feature the characters as residents of the Underworld.

Dallas teased that "a family member" of his character will also be there.

"There is definitely a particular person down there for David that he's going to come across, and Mary Margaret will come across that person too," the actor said.

There's no word on who that person could be, but it certainly is one of the aspects fans will look forward to as they wait for "Once Upon A Time" season 5 to return to the small screen.

Meanwhile, director Eriq La Salle shared photos from the set of the show. One photo showed Meghan Ory -- who will be back in the series as Ruby/Red Riding Hood -- smiling next to Dallas, Lana Parrilla, Ginnifer Goodwin, Jennifer Morrison, Colin O'Donoghue and other cast members.

When "Once Upon A Time" season 5 returns, Emma will travel to the Underworld to bring Hook back. A promotional photo for the midseason may be a hint that Emma succeeds in saving his beloved because it seemed like O'Donoghue was filming a scene in the real world with the heroes prior to taking the snap, according to IBTimes Australia.

"Once Upon A Time" season 5 resumes on Mar. 6 with an episode called "Souls of the Departed."

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