Will Halstead returns to Med to help Goodwin with a secret investigation. Archer and Charles deal with twins who insist on being identical inside and out. Stevie and Dylan treat a young patient with sickle cell anaemia.

Vanessa and Archer disagree on how to handle the victim of a motorcycle accident. Dylan and Charles deal with a UNICEF negotiator with repressed trauma. Stevie and Will treat a high schooler with Addison's disease and a clingy mother.

Dylan and Will deal with a dishonest patient whose lupus is in remission. A wealthy donor makes inappropriate advances toward Stevie. Vanessa, Crockett and Charles try to convince a young woman to have life-saving surgery.

Charles helps Dylan with a long-time patient who was recently diagnosed with schizophrenia. Stevie, Maggie and Vanessa investigate the legitimacy of a patient's cancer diagnosis. Crockett is caught off-guard. Will pitches a new medical technology.

Dylan and Charles treat patients suffering from Glass Child Syndrome and misdiagnosed ADHD. Crockett has to navigate hospital politics when he cares for the daughter of a transplant surgeon. Will and Stevie must lay egos aside to help save an elderly patient.

Stevie's worlds collide when her mother becomes her patient. Dylan's history with the father of a patient interferes with his perception of a case. Crockett's allegiances are challenged when his patient's liver is a potential match for one of Dr. Blake's patients.

Crockett helps Dr. Blake replace a patient's liver. Vanessa tries to prove herself. Will continues to pursue the truth about Cooper. Ethan gets closer to returning to life in the E.D.

Dylan's loyalties are challenged when an old family friend and veteran cop exhibits concerning behaviour. The annual random drug testing puts a doctor's career in jeopardy. Ethan tries a risky old-school method on a patient. Will helps Stevie search for her mother.

The outcome of Will's investigation weighs heavily on his mind as he works with Dylan to save a 4-month-old patient. Stevie and Vanessa both struggle to keep their secrets. Crockett and Blake work with Abrams to save a patient in need of a liver transplant.

In the aftermath of the Vas-COM scandal, Goodwin clashes with the hospital's new compliance officer. Crockett and Blake try to save a patient who has a son with severe autism. A patient's son lies to his father about his diagnosis.

Crockett and Blake clash with Randall when an alcoholic football player needs a liver transplant. Dylan is reluctantly reunited with old friends when their son breaks his arm. Stevie and Charles work together when a patient falls ill after back-alley plastic surgery.

Will and Stevie get stuck in the middle of a marital face-off. Dr. Blake's entire surgical team mysteriously collapses during a liver transplant. Charles encourages Ethan to reconcile with his father.

Dylan and Archer diagnose a pregnant woman with a serious infection. Maggie receives shocking news. Will and Charles question an elderly patient's Alzheimer's diagnosis. In an effort to help a patient, Crockett takes a risk.

Goodwin assigns Med's new compliance officer to a patient with a long-hauler Covid condition. Maggie helps Will treat a patient who's been in an iron lung for 60 years. Stevie learns hard truths about her mother. Terrell returns to Med under dire circumstances.

Dylan's instincts come to life when he suspects his patient may be a drug dealer. Will must decide how to spend his whistle-blower payment. Charles and Vanessa help a patient who thinks she's infested with parasites. Crockett and Blake team-up with an arrogant surgeon.

Will helps a patient with long-haul Covid symptoms. Vanessa reflects on her dating life when she learns that a patient's daughter is having an arranged marriage. A new family is born out of tragedy.

Rival gangs bring their war to Med. Will and Charles work with a brain cancer patient who is refusing treatment. Tensions run high in the OR when a patient's transplanted uterus fails, forcing Crockett and Blake to consider using a uterus from the patient's sister.

Archer and Asher clash over a patient with close ties to Goodwin. After a patient is shot during a home invasion, Scott and Marcel help with the investigation. Maggie and Halstead work to protect a patient who is in the country illegally.

Halstead and Asher work to save a surrogate's baby. Charles cares for a patient on a hunger strike. Choi and Archer help a patient with ties to Choi's late father. Scott and Maggie are stumped by a drunk patient who claims to be sober.

Dylan helps the daughter of a mob boss. A grandmother comes to Med desperate to save her grandson. Ethan struggles with some shocking news about his father. Will and Vanessa care for Maggie's high school classmate.

Scott and Choi treat a patient shot during a drug raid. Charles and Taylor work together to properly diagnose a motivational speaker. Halstead and Asher turn to Marcel for help with a pregnant patient.

Will and Hannah clash over a patient in need of a kidney transplant. Crockett is faced with a tough decision when Blake is in surgery. Ethan and Archer treat the son of Med's general counsel. Med's family grows.

In the aftermath of Will's apartment fire, Crockett, Ethan and Archer work together to try and save the survivors. Charles and Med's new fellow, Nellie, helps a paranoid patient. Dylan makes a life-changing decision.

Supply chain disruptions dramatically impact Med causing Crockett and Kai, a new surgical resident, to clash with other doctors. Maggie reveals something to Ben. Ethan and Archer help a patient with ALS.

Charles and Nellie clash over the treatment of a paranoid patient. Ethan treats a pregnant patient from Hannah's past. Crockett and Vanessa help a man who needs a risky neurosurgery.

When a subway train goes off the tracks, Crockett volunteers to help the victims. Vanessa and Will must decide if they're willing to risk their jobs to save a patient. Hannah and Archer clash over a pregnant patient.

The effects of the supply chain shortages continue to impact the E.D. when Vanessa's drug dealer reappears. One of the victims of the recent train crash needs a transplant, forcing Crockett to improvise. Charles and Nellie help a patient with amnesia.

Crockett adjusts to his newfound fame when he helps Will treat a local restaurant owner. Ethan, Charles and Goodwin aid a new mother worried about hurting her baby. Maggie and Vanessa clash with a patient eager to get back to work.

Med runs out of scrubs, forcing the staff to improvise. The life of Archer's son is in danger. Crockett and Charles help a kidney transplant patient experiencing psychosis. Hannah and Will grow closer.

Will, Crockett and Justin Lieu try to facilitate a trans-organ exchange. Hannah and Nellie help a sexual assault survivor. Ethan and Archer treat a patient whose case could expose a fraudulent doctor. Grant and Maggie take a trip down memory lane.

Will relies on Crockett and Med's newly donated OR 2.0 to save his patient. Charles helps an elderly confused patient who's mourning the loss of his high school sweetheart. As their wedding day approaches, Ethan and April run into some roadblocks.

Charles and Nellie help an elderly patient and her disabled grandson. Will treats a high school swimmer with a heart condition. Crockett considers using the O.R. 2.0 for surgery. Hannah and Dr. Justin Lieu search for a patient's missing pregnant wife in the woods.

Crockett and Charles treat Justin's gym buddy. Maggie and Will help a robbery-homicide suspect. Hannah and Archer use Med's new opiate abuse A.I. programme.

Goodwin, Maggie and Crockett help victims of a hit-and-run accident. Will struggles to diagnose a patient with seizures. Hannah and Archer clash with Jack Dayton.

A brutal storm rocks Chicago. Will encourages Dr. Grace Song to go against her own findings for the benefit of their patient. Hannah rushes to the hospital to help Archer's pregnant patient. Maggie's concern for Ben consumes her.

Crockett relies on O.R. 2.0 to save a construction worker's severed hand. Charles and Goodwin clash as negotiations drag on between the administration and the custodial workers' union. Hannah fights to keep a mother and her newborn baby together.

The hospital is in disarray when the janitors go on strike. Crockett treats a young girl injured on her family's farm. Charles and Nellie's schizophrenic patient returns to Med. Archer encounters a patient with foreign material in her stomach.

Will and Nellie struggle to diagnose a patient with a rare disorder. CFD and Med staff work to free a paranoid father trapped in the MRI suite. Kai gets an ego check.

A documentary crew visits Med to film Crockett and Abrams' groundbreaking surgery. Archer refuses to ask for help for his kidney issues despite the staff's unrelenting kindness. Will starts to develop feelings for a co-worker.

Dr. Grace Song launches her pilot programme, giving the E.D. a technological facelift. As his health worsens, Archer clashes with Charles on a patient faking paralysis. Hannah helps a pregnant mother with a heart condition.

The fate of the hospital rests on the vote of an incapacitated board member. Archer helps a mother with a rare stem cell disease while Hannah treats the woman's pregnant daughter. Charles encounters a schizophrenic patient with a serious hearing impairment.

Maggie clashes with Charles on a patient who's distrustful of hospitals. Crockett and Will fight against Med's new policies to save their cancer patient. Hannah and Archer pull surprising things out of their unsuspecting patients.

As Jack Dayton prepares to launch OR 2.0's IPO, Crockett and Grace search for data that may put a wrench in his plans. Charles helps a schizophrenic patient who's anxious about his prom. Hannah clashes with Sam Abrams when his wife becomes her patient.

Shocking information threatens Jack Dayton's surgery and the future of OR 2.0. Archer goes rogue to save a patient in need. Maggie questions her future at Med.

When the E.D. is flooded with patients from a crash, the entire team is pulled in to help. Dr. Charles can’t shake the feeling that he knows the new E.D. attending. Dr. Archer has second thoughts on the eve of his kidney transplant.

A woman from Archer's past returns and threatens his transplant surgery. Marcel clashes with Med's new eager first-year resident. Charles works to repair his relationship with Ripley.

Frustrated with an insurance company, Zola takes matters into her own hands, jeopardizing Med’s negotiations and Crockett’s first day on the board. Charles helps a woman’s depressed husband. Hannah’s first date takes a surprising turn.

Goodwin is worried after an accident lands two people close to her in the E.D. Archer returns to Med and treats a man worried about a family curse. Maggie and Zola help a patient on a cross-country road trip.

Goodwin recruits Charles to evaluate her ex-husband's memory. Archer treats one of Sean's peers from the rehab center. Hannah treats a woman from a rural clinic whose miscarriage was improperly treated.

Maggie empathizes with a patient whose mother is afraid to consent to her son's risky surgery. Ripley treats someone from his past. Zola questions her instincts after her actions have unexpected consequences.

Ripley and Charles treat a patient with obsessive-compulsive disorder. Asher and Archer encounter a woman with a foreign object lodged in her heart. Marcel clashes with the chief of oncology.

Archer, Hannah and Charles encounter an expecting father who claims he’s telepathic and receiving messages from his yet-to-be born son. Zola works to thaw out a frozen criminal. Ripley treats Liliana’s brother as a favor to Charles.

Ripley and Charles treat members of a cult. Zola's suspension takes an unexpected toll on Crockett. Dr. Abrams' 5-month-old son lands in the E.D. under questionable circumstances.

Maggie's budding romance takes flight; after a woman's shocking suicide attempt, Charles searches for answers; Asher works to diagnose a patient who is new to the city and appears with mysterious symptoms.

Ripley struggles to keep Sully’s diagnosis a secret when the latter’s pregnant girlfriend comes to Med for help. Loren works to earn a spot in Med’s trauma fellowship. Charles and a medical student treat a bipolar artist.

An infection threatens Marcel's risky liver transplant. Maggie and Charles help a struggling burn unit nurse. Goodwin is forced to make a tough decision about Bert's future.

Ripley and Charles treat a high-risk prisoner who may have dementia. Archer and Sean clash when a resident from Margo's facility lands in the E.D. Crockett receives shocking news.