A bus full of kids crashes and sends the team racing. Bash’s life is upended when he is reunited with a woman from his past. With Dr. Bishop still unconscious after his stroke, Mags struggles to find support in her mentor’s absence. Theo faces repercussions from his family after taking a full-time job away from home, and June has an important career decision to make.

Rania's arrival triggers unwanted memories for Bash; Mags can't win her new boss' approval.

A morbidity and mortality review forces Bash and Dr. Bishop into conflict.

As Dr. Bishop faces challenges returning to work, Bash's loyalty is tested; Mags has a harrowing encounter with an aggressive patient.

Bash’s focus is split between the needs of patients in two countries; Dr. Bishop’s emergency department goals are met with mixed support.

As shakeups force major turmoil at the hospital, Bash and Amira take a trip.

Bash saves a hostile man during his commute and gets some shocking news about his future.

As Bash fights for Dr. Bishop's legacy, big questions about his own future are finally answered.

Bash's decisions lead to conflict with the new chief of emergency medicine; Mags struggles to save a patient who thinks the system gave up on her; June has trouble with her new roommate, and gets a work proposal from Novak; Theo has trouble adapting.

Bash treats a man with a rare medical condition. Mags gets a visit from her parents and goes above and beyond for a pregnant woman with an undiagnosed condition. A misunderstanding with a rabies patient lands Theo in trouble. June and Novak negotiate a tentative working relationship. Devi starts to make changes.

Recovering from a personal crisis, Mags worries about how to get her life back on track; Bash takes an unorthodox approach to treating a soldier with PTSD; Theo treats a terminally ill child whose father is desperate for a drug trial.

Bash and Mags team up to save a John and Jane Doe found in the woods. A fully qualified surgeon now, June sees her old mentor in a new light. Suspended from the hospital, Theo longs for the action while treating patients virtually. Devi makes a budget cut decision, which will have major consequences for the Emergency Department.

Bash jumps into a sinkhole to save a trapped pedestrian. Mags faces a difficult personal choice, while attempting to contain a potential outbreak in the Emergency Department. Theo does whatever it takes to help a boxer with severe chest pain. June connects with a volatile patient, overstepping Novak. Claire is having trouble adjusting after a past assault.

Bash and Mags fall into friendly competition at work, and a man with superhero ideation crash lands into the Emergency Department. June tries group therapy, and Theo faces a tribunal to decide his fate.

Devi decides between Bash and Mags. Bash helps a young single father with nowhere else to turn. June and Novak take different approaches with a resident. Theo treats a teen patient with a connection close to home. Mags gets life altering news.

Mags shares big personal news with her colleagues, which has an effect on Bash. June sees a patient with a specific phobia. Theo bumps against a protective family doctor while trying to help a returning young patient. Claire looks for help but finds Devi stretched thin.

Mags undergoes transplant surgery and copes with the aftermath aided by her family and Bash. Bash balances personal and professional stress. June confronts Novak's self-sabotaging behaviour. Theo navigates a visit from his father and thwarts Liz's attempt to meet his family.

Bash passes on an opportunity, and works cases where things are not as they appear. Mags returns to York Memorial. June navigates loss professionally and personally. Theo goes out on a limb again for a patient. Claire is confronted by Devi and her colleagues about recent challenges.

Bash and Mags support each other through new challenges while treating an older couple who show up at the hospital glued together. Theo is called out by Liz Bergeron about his repeated inability to follow hospital rules.

Bash treats a man injured in a car accident who was saved by the woman who hit him. Devi decides to fight to hold on to the department. In a moment where it is most needed, a former member of the York Memorial team returns.

June and Novak have it out. Theo risks his life for a patient and makes a big decision. Bash rises to the occasion during an emergency and sees how far he's come.