Alex tries desperately to save his patient while he waits for a severely agoraphobic blood donor to arrive from London. Jo reveals to Meredith why she's been so down.
Cast: Ellen Pompeo, Justin Chambers, Chandra Wilson, James Pickens Jr., Kevin McKidd, Jesse Williams, Caterina Scorsone, Camilla Luddington, Kelly McCreary, Giacomo Gianniotti, Kim Raver, Sophia Ali, Debbie Allen, Jake Borelli, Chris Carmack