Title: Love the One You're With
Air Date: October 18, 2012 at 9:00 PM PDT
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.
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.