The residents of Storybrooke are venturing into the Underworld where danger lurks at every turn, the spoilers for "Once Upon a Time" season 5 hint.
Josh Dallas, who plays Prince Charming, dished spoilers to Entertainment Weekly as he warned that it won't be easy for the heroes.
"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," he said.
"We're going to meet some people down there that maybe you don't expect or you haven't seen in quite a while - maybe a family member of David's we might see down there," he added.
"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," it said.
Previous spoilers for "Once Upon a Time" season 5 spoilers already revealed who Josh Dallas' character will meet in the Underworld, and it's none other than his twin brother.
Showrunner Edward Kitsis told The Hollywood Reporter that the Underworld will give plenty of time for the characters to come to terms with the people in their past.
He explained, "We're going to meet some new people in the underworld, but I think a lot of what people are going to see - kind of in honor of the 100th episode in our fifth year - is really seeing a lot of people from our past who we haven't seen in awhile."
Fans, of course, are anticipating an Emma and Hook reunion, as well as any plans for her to spring her love out of Underworld.
"I would say he's gone through a lot, as has Emma, as have all of them, so no one's the same. But if you're asking if he's still dark, then no - that was handled in the finale," co-showrunner Adam Horowitz added.
"Once Upon a Time" season 5 will return in March, and there will be plenty of spoilers that will come out before then.