The "Grey's Anatomy" Season 13 finale will be "very on fire." Literally? We'll see.

Episode 24, "Ring of Fire" (hint, hint?) airs Thursday, May 18 with this synopsis: "The doctors' lives are at risk after a dangerous patient escapes the hospital room. Alex must make a hard choice in his relationship with Jo while Meredith has some big news for Nathan that brings things to a turning point."

Executive producer Debbie Allen (Catherine Avery) directed the finale, and she told Entertainment Weekly, "There's actually two events going on at the same time that are pretty big that affect the entire hospital community. You should be worried. There's cause for worry. There's an amazing cliffhanger that will have everybody thinking, 'Wow, where is this going?!'" She added that they'll "plant more seeds that fuel the fire for what is going to happen next season."

Allen added, in a separate EW interview, "I think Season 14 is going to be spectacular. We're planting some seeds that you won't see coming, but you will be waiting to see how it's all going to play out." Show creator Shonda Rhimes is the one who teased, to EW, "Debbie Allen and I like to say that the episode is on fire. That's the only way we're going to describe it. It's a pretty exciting episode that's very on fire."

Kelly McCreary (Maggie Pierce) previously teased the "event" of the finale, telling EW, "It's a great big event that will keep everyone on the edge of their seats. It really is shocking. There were so many gasps of horror and surprise at the table read. It was delicious. It was just so much fun." A while back, Kevin McKidd (Owen Hunt) told TVLine the finale would be "pretty dramatic and pretty intense. It's pretty dark and very good."

We're excited to see the cliffhangers, and what they mean for Season 14, but it's the relationship stuff with Mer, Riggs, and Jolex that really has us curious.

Before we get to the finale, we have one more episode to get through, "True Colors," which airs May 11 with this synopsis: "The doctors of Grey Sloan encounter a difficult case involving a dangerous patient. Meanwhile, Owen receives life-changing news that pushes Amelia to step up to support him, and Alex attends a medical conference after making a shocking discovery."

Jo's hubby, comin' in hot? Hmm..."Grey's Anatomy" airs Thursdays at 8 p.m. on ABC.

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