Chen senses ulterior motives in Fitz's return to Mercy hospital, and confronts him when he finds the love letters that Fitz had wrote to Ming. They recall the Morbidity and Mortality conference (M&M), where Fitz presented the code blue that he and Chen were called to.

Christmas time brings chaos to the hospital. Fitz tends to a patient that had a run in with the cops, while Chen must deal with a patient who was unfaithful in his marriage. Both Chen and Fitz evaluate their own careers and relationships. Ming visits her father, who has unwanted advice in regards to her fertility problems. Sri receives some unsettling news.