Code Black is a heart-pounding medical drama that takes place in the busiest, most notorious ER in the nation, where the staggering influx of patients outweigh the limited resources available to the extraordinary doctors and nurses whose job is to treat them all—creating a condition known as Code Black. At the heart of the ER is Dr. Leanne Rorish, (Marcia Gay Harden) a stop-at-nothing residency director whose job is to save lives in an often-impossible environment.