Sam gives her friends a marital intervention.

Captain Holt deals with a personal loss. Jake must decide whether to take Terry or Charles to an exclusive event.

A wealthy inventor arrives at Grey Sloan and asks Koracick for help, while Meredith struggles to save a woman with diabetes who has been rationing her insulin. Jo and Link fight to save a young man who fell onto train tracks, and Jackson and Vic’s relationship hits a snag.

Jamie pays Sonya a surprise visit; Ambrose goes to extreme lengths to get a confession.

Jimmy welcomes an interview with and musical performance by Mandy Moore, Dr. Oz, and actor Dane DeHaan.