Lorena Diaz

When a commuter ship capsizes, the ED finds itself under water as the staff struggle to treat the influx of new patients and deal with bold new employees taking charge.

Lenox continues to rankle Archer as the two tackle their new roles; Ripley faces possible suspension over what really happened to Pawel; Goodwin is forced to make layoffs.

Asher treats a woman whose undiagnosed condition threatens the lives of both her and her unborn child; Goodwin receives a chilling message while battling the hospital higher-ups.

Ripley and Frost uncover shocking information that conflicts with their patient's DNR; Asher facilitates an unexpected reunion; the tension between Archer and Lenox comes to a head.

A familiar face returns to the ED; Ripley and Charles treat a woman with a rare disorder; Frost suspects that his patient's father is lying about his daughter's condition.

Following the subway tunnel collapse, Ruzek and Kidd treat injured passengers and track down the missing offender; Archer and Frost perform a life-saving amputation; Lenox feels the weight of the CPD's hopes as she fights to save one of their own.