April finds herself in a dangerous situation and Natalie gets an update on Will. Dr. Rhodes gears up for a gala honoring his hybrid O.R. and tries to convince Dr….

Dr. Halstead rushes to rescue Dr. Manning after she is involved in a Medevac helicopter crash. The personal drama between Dr. Rhodes and Dr. Bekker boils over. Dr. Charles and…

Halstead hides the theft of his gun from a suspicious Manning. Tensions are still high between Connor and Bekker, who take a risk operating on an HIV-positive patient. Hank breaks…

Dr. Halstead gets an unplanned visit from the CPD while Ethan is skeptical of a woman who is experiencing chronic pain. Natalie tends to a cancer patient whose brother has…

Dr. Manning and Dr. Charles treat a teenage girl with a rapidly changing set of symptoms that has everyone perplexed. Dr. Choi and medical student Jeff Clark encounter a 19…

Dr. Reese is contacted for help by a troubled teen in a psychiatric facility and Dr. Manning tries to help parents make a decision about their comatose daughter’s surprise pregnancy….

After discovering that a patient’s family might have been abusive, Dr. Choi and April contemplate calling child services. Dr. Manning and Dr. Halstead struggle to see eye to eye in…

Dr. Halstead and Dr. Manning deal with two warring brothers who are brought together when one finds himself in desperate need of a kidney. Dr. Reese’s former patient Danny comes…

An erratic patient arrives, claiming that his heart is pounding inside his head as he takes drastic measures to stop it. Also, Dr. Manning helps a boy with a broken…

April and Dr. Halstead clash over how to treat an alcoholic homeless man with a broken leg. Also, Dr. Manning continues to grieve over her husband’s death; two elderly women…

A member of Firehouse 51 clings to life and takes a sudden turn for the worse as medical staffers race to give treatment. Meanwhile, Dr. Natalie Manning prepares for her…

A tornado threatens Chicago. Chili makes a major mistake, which causes Brett to report her to Boden. Otis asks Dawson to help him solve his women troubles. Severide assists a…

An ice storm hits, forcing a citywide lockdown. Mills and Brett are left stranded in the elements while searching for a teen, and the firehouse members babysit a newborn. Elsewhere,…