"The goodbye you never expected," reads the on-screen text — which makes us even more sure that the finale will be a deadly one for at least one of our beloved surgeons.
We've rounded up all the intel we have on the episode here, and below is ABC's synopsis of the installment.
In the Season 10 finale, the doctors of Grey Sloan Memorial Hospital bid an emotional farewell to the beloved Cristina Yang (Sandra Oh). A possible act of terrorism rocks Seattle and causes chaos at the hospital. Meanwhile, Meredith (Ellen Pompeo) makes a life-changing decision, and one doctor receives shocking news.
Grey's Anatomy Season 10, Episode 24 — "Fear (of the Unknown)" — airing Thursday, May 15, at 9 p.m. ET.