Klaus is running out of time on the final season of “The Originals.” Hope reclaimed the Hollow in its entirety, but it’s killing her. She doesn’t have long to live, and that means Klaus has to turn to Caroline for help.

“With Hope (Danielle Rose Russell) facing a life-threatening affliction and deteriorating quickly, Klaus (Joseph Morgan) travels to Mystic Falls to seek help from Caroline (Candice King),” the synopsis for “The Originals” Season 5, episode 12 teases. Dire situations have always been perfect for romantic tension in Mystic Falls.

Klaus will bring Hope and Elijah (Daniel Gillies) with him to Virginia, but Klaus will be mostly working with Caroline to get what he needs. He has a new idea for saving Hope, and Caroline will be torn about whether she should help him. However, it’s Caroline’s former fiancé and father of her children that will stand in his way. “A run-in with Alaric Saltzman (Matthew Davis) throws a wrench into Klaus’ plan,” the logline for the CW drama reveals.

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Klaus (Joseph Morgan) and Caroline (Candice King) reunite in "The Originals" Season 5, episode 12. Annette Brown/The CW

Klaus’ search for a plan is kicking into overdrive after he realizes the full moon is upon them. According to the trailer for episode 12, titled “The Tale of Two Wolves,” Hope might die during the transformation with the Hollow inside of her. “She won’t survive the night,” Marcel (Charles Michael Davis) says in the promo video.

No one, however, has informed Hope that she is dying. Elijah will be trying to keep the teenager busy to distract her from her father’s frantic planning.

“Tasked with keeping Hope preoccupied in Mystic Falls, Elijah (Daniel Gillies) comes to a heartbreaking realization about his niece,” the synopsis teases.

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Alaric (Matt Davis) tries to stop Klaus from doing something dangerous in "The Originals" Season 5, episode 12. Annette Brown/The CW

We’ll see Mystic Falls from Hope’s perspective, giving audiences an idea of what to expect when “Legacies,” the Hope-centered spinoff, premieres in October. The episode, penned by Carina Adly MacKenzie and Julie Plec, will even introduce Landon (Aria Shahghasemi), a human character from the new show.

The new episode will include footage that some fans caught at San Diego Comic-Con in the “Legacies” trailer. Several of those Landon scenes from the spinoff promo will actually be in this episode.

Don’t worry, “The Originals” hasn’t forgotten its past. Hope’s day around town will also give longtime “Vampire Diaries” fans a few Easter eggs too.

“The Originals” Season 5, episode 12 airs Wednesday at 9 p.m. EDT on The CW.