Things are heating up on Storybrooke as "Once Upon a Time" season 5, episode 4 spoilers reveal that there's a way to stop the Dark One, but Prince Charming and Snow White might sacrifice their own daughter in the process.

Meanwhile, Emma Swan is still pining for Captain Hook to get her out of the messy situation she is in.

Producer Edward Kitsis teased spoilers for "Once Upon a Time" season 5 to TVLine as he said there's still a lot of feelings left between Emma and Hook.

"Emma's next move is more like Hook is going to make the next move, finding out who she is," he said. "Hook has spent a long time pursuing a Dark One and thus knows a lot about Dark Ones, so his main goal is saving Emma from herself."

"The internal conflict remains a huge thing for her," showrunner Adam Horowitz added. "She is dark, but she does have feelings for Hook, and those things are at war within her and really are pushing her in the action she's going to be taking next."

The clip dropped by ABC offers some spoilers for "Once Upon a Time" season 5, episode 4. In the one-minute trailer, Rumple can be seen challenging Emma Swan as he says, "You're the savior ... save yourself before it's too late."

In the next scene, King Arthur tells Prince Charming and Snow White about the "Dagger of the Dark One," the only thing that might stop Emma Swan.

The voice over says, "It's the one possession that can defeat the darkness - but it stands between them and saving their daughter."

But can they trust King Arthur?

At the end of the clip, King Arthur drew his sword as he demanded that Snow White hands over the dagger.

Watch out for more "Once Upon a Time" season 5 spoilers as episode 4 airs on Sunday, Oct. 18, on ABC.