Alex grows closer to Jane Doe as he continues to work on her case. Helen Crawford flies into Seattle for surgery. She knows someone on the staff. Colin Marlow enters the race for Chief of Surgery. George faces more problems with Callie and Izzie. Callie reveals a big secret. Someone treats a WWII veteran. Also Derek treats a patient near and dear to him.
Elenco: Ellen Pompeo , James Pickens Jr. , Chandra Wilson , Justin Chambers , Kevin McKidd , Jesse Williams , Patrick Dempsey , Sara Ramirez , Sandra Oh , Jessica Capshaw , Sarah Drew , Camilla Luddington , Caterina Scorsone , Giacomo Gianniotti , Kelly McCreary , Katherine Heigl , Chyler Leigh , Eric Dane , Kim Raver , T.R. Knight , Jerrika Hinton , Jason George , Isaiah Washington , Kate Walsh , Martin Henderson , Brooke Smith , Jake Borelli , Greg Germann , Chris Carmack , Tessa Ferrer , Gaius Charles , Anthony Hill , Richard Flood .