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 Amira have an argument over her future; Bash treats a diabetic woman who is overly dependent on her 18-year-old son; Mags questions herself as she adjusts to very limited parameters.

Bash's life is scrutinized during his citizenship interview; when treating survivors of a building fire, Theo needs Bash's help with a scared young boy; Mags helps a recovering addict who swallowed her keys; June and Bash treat estranged brothers.

Bash tries saving a couple whose wedding was waylaid by gunfire; Mags' demanding teen patient needs birth control; June struggles with an old habit; an activist patient puts Theo in his place.

A software glitch takes down the emergency department; Bash explores new terrain; Mags searches for a new cardiologist; June is fed up with her bosses; Theo attempts a stable dating life.

Bash has a major realization; Mags faces an overwhelming health crisis; Devi stands behind her choices; June confronts loss; Theo witnesses a devastating event.