In the aftermath of Halstead's apartment fire, Marcel, Choi and Archer work together to try to save the survivors. Charles and Med's new fellow, Cuevas, help a paranoid patient.

Supply chain disruptions dramatically impact Med, causing Marcel to clash with other doctors. Maggie reveals something to Ben. Choi and Archer help a patient with ALS.

Charles and Cuevas clash over the treatment of a paranoid patient. Choi treats a pregnant patient from Asher's past. Marcel and Taylor help a man who needs a risky neurosurgery.

When a subway train goes off the tracks, Marcel volunteers to help the victims. Taylor and Halstead must decide if they’re willing to risk their jobs to save a patient. Asher and Archer clash over a pregnant patient.

Maggie clashes with Charles over a distrustful patient. Marcel and Halstead fight against Med's new policies. Asher and Archer pull surprising things out of their unsuspecting patients.

Shocking information threatens Jack Dayton's surgery and the future of OR 2.0. Archer goes rogue to save a patient in need. Maggie questions her future at Med.