A family of victims from a house fire is rushed to Gaffney. Lenox fights to save two sisters injured in an all-night rave turned tragedy. Tensions mount between Goodwin and Abrams over difficult staffing changes.

Things get personal when Ripley and Archer butt heads over an unusual case. Asher makes a surprising discovery with an expectant couple. A patient throws the hospital into chaos.

Lenox and Frost receive an unusual request from the parents of a patient on life support. Ripley and Charles work with a man who can't remember who he is.

Charles races to convince a patient to accept treatment before it's too late. Frost bonds with a young girl battling immunodeficiency. Lenox makes a chilling discovery.

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.

Secrets are uncovered when Goodwin's family comes together for Bert. Ripley and Frost treat two children stung by hornets in a treehouse. A member of the team struggles with relationship woes.

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.

The doctors deal with the professional and personal fallout from the choices made during a city-wide power outage.