Season 4 of Chicago Med premiered on September 26, 2018. The season had 22 episodes.
- Brian Tee as Dr. Ethan Choi
- Colin Donnell as Dr. Connor Rhodes
- Marlyne Barrett as Maggie Lockwood
- Nick Gehlfuss as Dr. Will Halstead
- Norma Kuhling as Dr. Ava Bekker
- Oliver Platt as Dr. Daniel Charles
- Rachel DiPillo as Dr. Sarah Reese (Episode One Only)
- S. Epatha Merkerson as Sharon Goodwin
- Torrey DeVitto as Dr. Natalie Manning
- Yaya DaCosta as Nurse April Sexton
|Be My Better Half||Diane Frolov & Andrew Schneider||Michael Waxman||September 26, 2018||#4x01|
|Goodwin finds herself quickly clashing with the new hospital COO Gwen Garrett while April questions whether or not Ethan's sister, Emily, is using again. Dr. Charles deals with his past actions.
|When To Let Go||Diane Frolov, Andrew Schneider & Danny Weiss||Charles S. Carroll||October 3, 2018||#4x02|
|In the second part of the three-show, one-night crossover event, the doctors and nurses of Chicago Med find themselves on high alert when an overflow of patients are rushed into the doors following a terrifying apartment complex blaze. Dr. Rhodes fights to save the life of one of "Chicago Fire's" own, while Dr. Halstead and his brother Jay struggle with their own personal battle.
|Heavy Is The Head||Jeff Drayer||Michael Waxman||October 10, 2018||#4x03|
|When a sick boy is brought in, Ethan is faced with a tough decision that quickly escalates into a complicated and dangerous situation. Connor and Maggie are put to the test, while Natalie and Ethan aren't sure what to make of Elsa, the new third year medical student
|Backed Against The Wall||Eli Talbert||Vincent Misiano||October 17, 2018||#4x04|
|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 strong feelings on why he is refusing to lend his assistance
|What You Don't Know||Stephen Hootstein||Donald Petrie||October 24, 2018||#4x05|
|When things become complicated, Will is forced to lie to Natalie. Ethan and April find out some compromising information about Emily's boyfriend and Ava is unsure of what to do with a patient who is refusing treatment.
|Lesser of Two Evils||Safura Fadavi & Meridith Friedman||Martha Mitchell||October 31, 2018||#4x06|
|Dr. Manning and Dr. Halstead become skeptical of a patient's injuries when the victim of a car accident is brought into the hospital. Ethan and April have a difficult time understanding Emily's attachment to her boyfriend despite recent developments. Will and Natalie brace for their joint bachelor/bachelorette party.
|The Poison Inside Us||Jeff Drayer & Joseph Sousa||Milena Govich||November 7, 2018||#4x07|
|The hospital is forced to evacuate when a toxic chemical is brought into the E.D., leaving patients and the staff in grave danger. Stuck in an elevator, Dr. Charles and Dr. Manning are forced to take drastic measures with a pregnant woman. Goodwin is tasked with making difficult choices and Dr. Rhodes discovers a secret that Dr. Bekker has been holding from him.
|Play By My Rules||Eli Talbert & Daniel Sinclair||Valerie Weiss||November 14, 2018||#4x08|
|Dr. Charles struggles to convince Dr. Choi that surgery isn't always the answer. Dr. Rhodes finds himself in hot water with Goodwin when he disobeys her direct order. April becomes frustrated with Maggie when she continues to question her leadership role as the stand-in charge nurse. Dr. Manning suspects Dr. Halstead is keeping something from her.
|Death Do Us Part||Stephen Hootstein & Paul R. Puri||Fred Berner||December 05, 2018||#4x09|
|Will and Natalie prepare for their big day, but an unsuspecting Will soon finds himself sidetracked. Dr. Charles disagrees with Goodwin on how to best handle a patient's treatment while Dr. Choi and April are on their own when a pregnant woman delivers. Dr. Rhodes finds himself operating on a patient that is of great importance to Det. Halstead.
|All The Lonely People||Diane Frolov & Andrew Schneider||Michael Waxman||January 09, 2019||#4x10|
|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. Bekker to join him.
|Who Can You Trust|| Teleplay by: Meridith Friedman |
Story by: Safura Fadavi & Meridith Friedman
|Charles S. Carroll||January 16, 2019||#4x11|
|Will adjusts to hospital life in the aftermath of his recent undercover activities. Ethan and April's personal relationship starts to interfere with their working situation. Dr. Charles and Dr. Manning collaborate on a patient suffering from Alzheimer's. Dr. Rhodes and Dr. Bekker have a difference of opinion in dealing with a woman in desperate need of a kidney transplant.
|The Things We Do||Jeff Drayer & Danny Weiss||Carl Seaton||January 23, 2019||#4x12|
|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 Dr. Choi work to help a patient come to terms with their addiction. April helps Elsa deal with the loss of her first patient.
|Ghosts in the Attic|| Story by : Stephen Hootstein & Joseph Sousa |
Teleplay by : Stephen Hootstein & Joseph Sousa & Jason Cho
|Michael Pressman||February 06, 2019||#4x13|
|Dr. Halstead withholds some important information from Dr. Manning and she begins to question his suspect behavior. Dr. Choi comes to some difficult conclusions involving April over a patient's care. An incident in the OR involving Dr. Bekker at the hands of Dr. Rhodes may have serious implications.
|Can't Unring That Bell||Diane Frolov, Andrew Schneider & Daniel Sinclair||Lin Oeding||February 13, 2019||#4x14|
|Will's personal issues continue to interfere with his relationship with Natalie and his life at the hospital. Dr. Bekker tries to mend things with Dr. Rhodes. Goodwin questions Maggie's life-threatening decision and Dr. Charles tries to lend a hand to the daughter of a new friend.
|We Hold These Truths||Eli Talbert & Paul R. Puri||Nicole Rubio||February 20, 2019||#4x15|
|After witnessing a pick-up truck plow through a street fair, Natalie and Maggie are forced to make some tough decisions on the fly. The doctors and nurses of Chicago Med find themselves on high alert with the influx of patients arriving in need of aid. Dr. Charles ex-wife comes to town with news.
|Old Flames, New Sparks|| Teleplay by: Safura Fadavi
Story by: Safura Fadavi & Meridith Friedman
|Elodie Keene||February 27, 2019||#4x16|
|Natalie and Will grow further apart. Dr. Charles struggles to come to terms with his feelings toward his ex-wife. The personal issues between Dr. Rhodes and Dr. Bekker continue to cause problems at the hospital.
|The Space Between Us|| Story by : Danny Weiss & Ryan Michael Johnson |
Teleplay by : Danny Weiss & Jeff Drayer
|Daniela De Carlo||March 27, 2019||#4x17|
|When a car unexpectedly smashes through the ambulance bay doors, Dr. Choi makes some difficult decisions in an effort to save a worker trapped beneath the wreckage and April, who's also in danger. Dr. Rhodes and Dr. Bekker tend to a patient whose best chance at survival is an extremely risky heart surgery. Dr. Charles struggles to come to terms with ex-wife Caroline's treatment.
|Tell Me the Truth|| Story by : Diane Frolov & Andrew Schneider |
Teleplay by : Andrew Schneider & Gabriel L. Feinberg
|Vincent Misiano||April 03, 2019||#4x18|
|Dr. Rhodes receives an alarming phone call that prompts him to rush out in the middle of an important surgery. Dr. Halstead comes to the aid of an FBI agent who is brought into the ER, but he suspects there is more to the story than he is being told. Dr. Manning and Dr. Choi find themselves on opposite sides of a major disagreement over doctor-patient confidentiality.
|Never Let You Go||April 24, 2019||#4x19|
|The hospital goes into lockdown mode when a man with a gun holds medical staff hostage. Goodwin is forced to make a tough decision. Dr. Rhodes begins to realize his time with his father is getting short.
|More Harm Than Good|| Story by : Daniel Sinclair |
Teleplay by : Eli Talbert & Daniel Sinclair
|Milena Govich||May 08, 2019||#4x20|
|Dr. Charles and Dr. Manning disagree on how to handle a patient who they discover is poisoning herself. Dr. Rhodes throws some serious accusations at Dr. Bekker. Dr. Halstead has suspicions about Natalie’s new boyfriend and Dr. Choi tends to Bernie.
|Forever Hold Your Peace||Safura Fadavi & Meridith Friedman||Charles S. Carroll||May 15, 2019||#4x21|
|Caroline has news to share, forcing Dr. Charles to make a serious decision about their relationship. Maggie meets her sister's new boyfriend, but discovers danger may lie ahead. Dr. Rhodes experiences a devastating loss while Dr. Choi and April are faced with an unexpected challenge that strengthens their relationship.
|With A Brave Heart||Diane Frolov & Andrew Schneider||Michael Waxman||May 22, 2019||#4x22|
|In the season finale, Dr. Charles and Caroline set some major plans. Ava fights to keep her relationship with Connor. Agent Lee informs Will of news that may put his life in danger.
Notes and Trivia
- The show was renewed for a fourth season by the NBC on May 10, 2018.
- Chicago Med was given a new timeslot: Wednesday at 8 P.M.
- On July 23, 2018 it was announced that Molly Bernard and Colby Lewis are set to recur during Season 4.
- The first promotional video was released on July 25, 2018, regarding the new "Chicago Wednesday'" timeslot.
- Every episode, so far, in Season 4 has a four word title.
- Rachel DiPillo left her role as Dr. Sarah Reese after the first episode of the season.
- The season 4 finale will feature Colin Donnell and Norma Kuhling's final episodes.