Lorena Diaz

Charles grows increasingly suspicious of a colleague's intentions. Lenox crosses a line to protect a patient. Hannah and Archer treat a soon-to-be father battling cancer.

Tensions spike when a road rage incident sends three patients into the E.D.; Frost's former television co-star resurfaces; an unexpected arrival catches Hannah and Archer off guard.

How Do You Begin To Count The Losses. In the aftermath of Halstead's apartment fire, Marcel, Choi and Archer work together to try to save the survivors.

Secrets are uncovered when Goodwin's family comes together for Bert. Ripley and Frost treat two children stung by hornets in a treehouse.

Ino. Ethan finds himself at odds with Natalie and Sharon when it comes to the treatment of a troubled teenager who's just given birth; Dr. Halstead treats a hypochondriac with an overbearing wife.

A personal clash between Asher and Archer reaches a breaking point. Charles and Ripley uncover a rare neurological disorder in a patient. Goodwin's personal life is put to the test.