Code Black

Four new first-year medical residents face their initial challenges as they are quickly immersed in the demanding environment of the emergency room under the strict leadership of Dr. Leanne Rorish.

Christa saves a woman's life and urgently asks Neal to perform a complex surgery to preserve her fertility. At the same time, Mario confronts a patient after delivering a diagnosis that threatens the patient's professional hockey career.

During a code black, the doctors work nonstop for 36 hours and face the emotional challenge of caring for a mother whose two sons were seriously injured in a car accident. Meanwhile, Mario pressures Angus to perform an unnecessary surgery and allows him to be blamed when Leanne discovers what happened.

A new surgical attending, Cole Guthrie, joins Angels Memorial with the support of his estranged father, leading to tensions with Leanne due to their differing medical philosophies. Meanwhile, Christa struggles with self-doubt during a pediatric surgery, her first since the death of her child.

Neal conflicts with his neurosurgeon father over the best course of treatment for his critically ill mother, whose unusual symptoms lead to the quarantine of Trauma One at Angels Memorial.

Leanne faces a difficult choice when she must decide who to save—Tom Moreno, the police officer who assisted her during her family's accident, or his critically injured shooter. Meanwhile, Malaya is surprised by the results of an MRI when Carla Niven, her pregnant ex-girlfriend, arrives at the hospital complaining of arm pain.

Angus applies his psychological expertise to investigate a woman whose memory loss may be linked to an incident that also harmed others, while Christa forms a connection with the mother of a cystic fibrosis patient.

Christa manages medical crises occurring outside the emergency room at Angels Memorial Hospital. Meanwhile, Malaya organizes a bone marrow drive to help Carla, and Leanne declines a romantic invitation.

A lead actor in the touring production of *The Lion King* arrives at Angels Memorial with a severe throat infection, prompting Dr. Leanne Raine to deliver a diagnosis that threatens his future. Meanwhile, medical staff and the cast support a 17-year-old boy as he faces the emotional challenge of deciding to remove his father from life support.

Leanne grows increasingly anxious as Jesse battles for survival following a severe heart attack. At the same time, Mario asks the hospital staff to keep his absence a secret so he can search for a patient's missing son, defying Neal's instructions to remain on-site.

A dense fog complicates efforts at a major car crash site, putting the medical team at risk. Jesse struggles with a loss of confidence, while Carla's health takes a serious turn for the worse.

Amid the aftermath of a chaotic multi-vehicle accident, tensions rise as a love triangle develops between Mario, Angus, and Heather. Meanwhile, Malaya defies Carla's wishes by staying with her during the birth of her child.

Angus's accomplished older brother, a skilled ER doctor, seeks a job at Angels Memorial, creating tension and intrigue. Christa starts to develop romantic feelings for Neal, while Malaya faces a challenging situation with a patient who becomes overly attached to her.

Leanne travels to a prison to face the driver responsible for her family's death, seeking closure. At the same time, Malaya starts to feel uneasy in her interactions with one of her patients.

A violent incident at the hospital leaves several people seriously injured, prompting an internal investigation. In the aftermath, Christa and Neal disclose their personal relationship to hospital administrators.

Christa becomes uneasy when Neal's ex-girlfriend returns to the hospital after spending a year volunteering in Haiti, reigniting old tensions and self-doubt.

Christa and Grace work with a patient who claims to have been abused at a camp for troubled youth, forcing Christa to set aside her personal emotions to focus on the case.

Mario addresses Angus about his Adderall use, Christa discovers the extent of Neal and Grace's past relationship, and Dr. Mark Taylor returns to assist Leanne in finding budget funds to prevent Jesse and the nurses from striking.

New residents begin their training at the ER, while a military doctor with specialized skills is rushed to a beach following a shark attack, resulting in an accident involving Mike Leighton. Dr. Guthrie Jr. is also given additional responsibilities as the new director of the ER.

Willis assists a talented soccer player in deciding his future after a serious injury, while doctors struggle to diagnose a patient's abdominal pain due to her reluctance to disclose that she is transgender.

Willis disobeys Campbell's instructions to assist Mario and Heather in performing an unconventional procedure to save a maintenance worker trapped beneath an exploded boiler. Meanwhile, Dr. Desmond Leighton, Angus's father, attempts to take control of Mike's medical decisions through Power of Attorney, despite Mike having previously granted that authority to Angus.

On Halloween night, Willis, Noa, and Elliott respond to a fire at a reportedly haunted theater, where Dr. Nolan and the son of her boyfriend are believed to be trapped inside.

At Angels Memorial, the medical team responds to a surge of patients injured in a landslide, while a group of children returning from a camping trip introduce a measles outbreak, threatening the safety of the entire emergency room.

Malaya faces the difficult task of informing a college student regaining consciousness at Angels Memorial that she was raped. Meanwhile, Willis and Campbell clash over a terminally ill woman's request to die on her own terms, and a comedian is brought to the hospital after collapsing during a live performance.

Willis and Campbell are dispatched to a Russian submarine in U.S. waters to treat a critically injured sailor following an explosion, while a group of violent convicts, injured in a prison riot, attack Angels Memorial.

A group of doctors deal with patients who survived a mass suicide orchestrated by a cult, while Mario begins to explore a relationship with his late father's girlfriend.

In one storyline, Willis, Leanne, and Jesse perform a high-stakes surgery on a police officer with an explosive bullet embedded in her leg. At the same time, Mario, Noah, and Guthrie care for a magician experiencing respiratory issues.

A 13-year-old girl is admitted to Angels Memorial after a seizure related to spina bifida, surprising the staff when it is revealed she is the daughter of a prominent figure there. At the same time, a deaf workaholic and her translator arrive for treatment after a car accident sends them into the Los Angeles River.

A city-wide blackout disrupts Angels Memorial Hospital during a code black, leaving it without power or backup systems. While Campbell and Leanne transfer critical patients to a nearby facility, Elliot and Heather struggle to assist a woman in labor trapped in an elevator, and Willis and Dr. Nolan attempt to care for an elderly patient who believes she is still in 1942.

Leanne disobeys Campbell's instructions and uses the hospital helicopter to help a family reunite for a final farewell. At the same time, Willis and Loa use a cell phone application to communicate with a young autistic girl.

Guthrie begins his role as the hospital's new chaplain and contemplates a high-risk surgical option for his Parkinson's disease. At the same time, the medical team attends to victims of a devastating apartment fire.

Mario, exhausted from working a double shift, puts himself in danger by accompanying Willis to a construction site where two brothers are stranded on a crane 300 feet in the air.

A viral outbreak forces the ER at Angels Memorial into quarantine, putting both staff and patients at risk. Meanwhile, Ariel, a young girl who had formed a bond with Leanne after losing her father, returns to the hospital.

The medical team collaborates with the CDC to develop an antidote for a deadly virus spreading at Angels Memorial Hospital. Meanwhile, Leanne faces a significant personal decision, and Jesse begins working with a new group of residents.

A young girl is critically injured during a violent shoot-out, prompting the doctors to work urgently to save her life. Meanwhile, Willis transitions to field medicine, teaming up with paramedic Rox on an ambulance, and Leanne starts the process of adopting a child named Ariel.

Angus and Mario care for a self-proclaimed psychic patient who experiences visions of the hospital staff singing and dancing, finding beauty in the midst of turmoil at Angels Memorial. Meanwhile, Willis and Rox risk their lives to rescue a congressman and his aide from a severe multi-car crash.

Jesse struggles to accept his brother's severe condition after a warehouse collapse and a diagnosis of advanced congestive heart failure, while Willis confides in Rox about the death of his brother in Afghanistan.

Willis and Rox respond to a severe road rage incident causing multiple injuries. Meanwhile, Elliot faces a lawsuit over a deceased SWAT officer, leading him to question his medical abilities, and Leanne discovers Ariel on a date with Max, a young hospital patient.

Leanne and Jesse guide a young girl over the radio in constructing a defibrillator from plane supplies to help her unconscious mother, the pilot. Meanwhile, Rox and Willis are taken hostage at gunpoint en route to meet the plane.

Paramedics Willis and Rox respond to a mountain wildfire in Los Angeles to treat injured firefighters and decide to remain at the scene to search for a missing young boy who became separated from his father during the emergency.

Rox attempts to reconcile with her former step coach upon arriving at Angels Memorial after a mishap during a high school step team performance. Meanwhile, Noa urges Leanne and Campbell to explore alternative treatments before proceeding with an emergency hysterectomy on a teenage girl who is suffering complications following childbirth.

Mario assists Rox and Willis at the site of a boat accident, while Leanne attempts to rescue two siblings who participated in a dangerous challenge involving drinking boiling water through a straw. Meanwhile, Leanne is told by Max's father to stay away from his son after he discovers Max and Ariel kissing.

Max is admitted to Angels Memorial with breathing problems, and Ariel confesses her feelings for him. Meanwhile, Rox joins Willis and Martin at the funeral of an army comrade of Willis's brother, prompting Willis to investigate what happened to his brother's unit.

Elliot becomes increasingly concerned after hearing an emotional testimony from Detective Gomez's wife during his malpractice trial, though he remains hopeful that footage from Diego's documentary might sway her perspective. Meanwhile, Rox tries to reach out to Willis, who rebuffs her attempts at connection, and Leanne tries to offer support to Ariel following a significant personal tragedy.

Rox is injured while rescuing a firefighter and later struck by a drunk driver, requiring hospitalization at Angels Memorial. Willis grows closer to Rox and takes significant steps to support her. Meanwhile, Leanne prepares to share positive news regarding Ariel's adoption.

Willis remains in San Diego to care for Rox's health while Leanne and Max's father look for Ariel. Meanwhile, Noa informs Mario she is considering a job in Philadelphia, and Campbell offers Mario a position at Angels, forcing them to confront the possibility of ending their relationship due to conflicting career paths.

Angels Memorial is thrown into turmoil after a plane collides with the 8th floor, while Noa is critically injured in a car accident and depends on Mario for survival. Meanwhile, Willis confesses his need for Rox in his life, and the medical staff testify in court to support Leanne during a custody hearing.