‘Grey’s Anatomy’ Season 13, Episode 24 Spoilers: “Ring of Fire” – Massive Explosion Rocks Grey Sloan Memorial Hospital, Multiple Lives at Risk; EP Hints Cliffhanger Ending

‘Grey’s Anatomy’ season 13’s episode 24, titled “Ring of Fire,” will feature a massive explosion at the Grey Sloan Memorial Hospital that will put multiple lives at risk, including doctors and patients. Meanwhile, executive producer Debbie Allen hinted that the finale will end in a cliffhanger, ready for season 5.

The lengthy synopsis for “Ring of Fire” posted on TV Guide reads, “In the 13th season finale, the doctors' lives are at risk after a dangerous patient escapes the hospital room.

Meanwhile, Alex (Justin Chambers) makes a hard choice in his relationship with Jo (Camilla Luddington); and Meredith (Ellen Pompeo) has some big news for Nathan (Martin Henderson), bringing things to a turning point.”

The promo opens to a huge explosion in the hospital and a multiple alarm fire is reported. Firefighters and the immediate rescue team quickly enter Grey Sloane Memorial Hospital to evacuate the building as all staff and patients are in imminent danger. Some doctors are shown still in the middle of operations.

Meredith is also seen desperately searching for a missing little girl, who is hiding in terror somewhere in the hospital. Ben (Jason George) is also seen doing some searching of his own as he rushes into the burning building while Jackson Avery (Jesse Williams) looks for Stephanie (Jerrika Hinton).

Stephanie was seen in the final moments of the previous episode hiding together with the missing girl moments prior to the big explosion. It is unclear whether Stephanie has survived the incident, considering that actress Jerrika Hinton will be leaving the series for good.

Executive producer Debbie Allen, who plays Dr. Catherine Avery, previously revealed during an interview with Entertainment Weekly that season 13’s finale will end in a cliffhanger. Allen said, "There's actually two events going on at the same time that are pretty big that affect the entire hospital community.”

She continued, “"You should be worried… There's cause for worry. There's an amazing cliffhanger that will have everybody thinking, 'Wow, where is this going?!'"

‘Grey’s Anatomy’ season 13’s episode 24, titled “Ring of Fire,” is scheduled to air on ABC on May 18, 2017. It was directed by Debbie Allen and written by Stacy McKee.