Michael Vaughn Shaw

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.

Goodwin's troubles persist; Charles clashes with his former resident over a depressed patient; Lenox and Ripley treat a car accident victim who recently reunited with his college sweetheart.

Chicago P.D. steps up Goodwin's security after she's threatened online by a former employee; Archer and Frost treat victims from a disciplinary camp injured during a rockslide; Maggie gets roped into delivering a high schooler's baby.

An army of surgeons prepares to separate conjoined twins; Asher reconnects with someone from her past; Archer treats a tyrannical boss with a heart problem.

Goodwin is tasked with enforcing difficult cuts to hospital personnel; Charles' daughter is hospitalised after a car accident; a transplant patient makes a life-changing decision.