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.

The effects of the supply chain shortages continue to impact the ED when Taylor's drug dealer reappears. One of the victims of the recent train crash needs a transplant.

Marcel adjusts to his newfound fame when he helps Halstead treat a local restaurant owner. Choi, Charles and Goodwin aid a new mother worried about hurting her baby. Maggie and Taylor clash with a patient eager to get back to work.

Med runs out of scrubs, forcing the staff to improvise. The life of Archer’s son is in danger. Marcel and Charles help a kidney transplant patient experiencing psychosis. Asher and Halstead grow closer.

Halstead and Marcel facilitate a trans-organ exchange. Asher and Cuevas help a sexual assault survivor. Choi and Archer treat a patient whose case could expose a fraudulent doctor.

Halstead relies on Marcel and Med's newly donated OR 2.0 to save his patient. Charles helps an elderly, confused patient who's mourning the loss of his high school sweetheart. As their wedding day approaches, Choi and April run into some roadblocks.

Charles and Cuevas help an elderly patient and her developmentally disabled grandson. Halstead treats a swimmer with a heart condition. Marcel considers using the OR 2.0 for surgery.

Goodwin, Maggie and Marcel help victims of a hit-and-run accident. Halstead struggles to diagnose a patient with seizures. Asher and Archer clash with Jack Dayton.

A brutal storm rocks Chicago. Halstead encourages Dr. Grace Song to go against her own findings for the benefit of their patient. Asher rushes to the hospital to help Archer's pregnant patient. Maggie's concern for Ben consumes her.

Goodwin and Charles clash as negotiations drag on between the administration and the custodial workers' union. Asher fights to keep a mother and her newborn baby together.

The fate of the hospital rests on the vote of an incapacitated board member. Archer helps a mother with a rare stem cell disease while Asher treats the woman's pregnant daughter. Charles encounters a schizophrenic patient with a hearing impairment.

As Jack Dayton prepares to launch OR 2.0's IPO, Marcel and Grace search for data that may put a wrench in his plans. Charles helps a schizophrenic patient who is anxious about prom. Asher clashes with Abrams when his wife becomes her patient.

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.