VIDEO: Sneak Peek - 'Love the One You're With' on ABC's GREY'S ANATOMY

On this week's episode of ABC's GREY'S ANATOMY titled "Love the One You're With", the survivors from the crash are asked to make an almost impossible decision that will affect the rest of their lives. Meanwhile, tension grows between Jackson and April after they're forced to work together, and Alex tries to restrain himself with one of the interns. The episode airs THURSDAY, OCTOBER 18 (9:00-10:02 p.m., ET) on the ABC Television Network. Get a sneak peek below!

"Grey's Anatomy" stars Ellen Pompeo as MerEdith Grey, Patrick Dempsey as Derek Shepherd, Sandra Oh as Cristina Yang, Justin Chambers as Alex Karev, Chandra Wilson as Miranda Bailey, James Pickens, Jr. as Richard Webber, Sara Ramirez as Callie Torres, Eric Dane as Mark Sloan, Kevin McKidd as Owen Hunt, Jessica Capshaw as Arizona Robbins, Jesse Williams as Jackson Avery and Sarah Drew as April Kepner.

Guest cast for "Love the One You're With" includes William Daniels as Dr. Thomas, Steven Culp as Dr. Parker, CAMILLA LUDDINGTON as Jo, Gaius Charles as Shane, JERRIKA HINTON as Stephanie, Stefanie Black as Roxie, Ned Vaughn as airline lawyer, Skyler Day as Emery, Rebecca Lowman as Hazel and Meeghan Holaway as attorney.

The episode was written by Zoanne Clark and directed by Debbie Allen.

VIDEO: Sneak Peek -  'Love the One You're With' on ABC's GREY'S ANATOMY