While attempting to distract himself from the anniversary of his mentor's death, Dr. Robby introduces a fresh batch of interns to life in the ER.

While Robby handles an ultimatum from the hospital, Mel, Javadi, and Collins each handle unique mother-daughter dynamics.

Samira does her best to keep Whitaker on the right track. A teen overdose sparks conflict in the ER.

Santos and Collins each deal with moral quandaries. Samira’s careful approach earns praise from patients – and reproach from Robby.

After examining an influencer with strange symptoms, Samira pushes back against Robby. Santos contends with a patient accused of assault.

Bets are taken on the whereabouts of a stolen ambulance, while Santos learns a hard lesson, and Whitaker helps to tame “The Kraken.”

Robby helps siblings navigate their elderly father's end of life care. Later, Samira fends off cops targeting a woman with a misunderstood condition.

After a staff debrief from Robby, Dana defuses a waiting room brawl, Whitaker finds common ground with "The Kraken," and McKay faces a crucial error.

While Robby tries to keep a developing staffing situation under wraps, Collins guides a surrogate through a difficult delivery.

While Robby struggles with a loss, Abbott coaches Samira through a risky procedure, and Mel treats a teen with a mysterious rash.

With the Pitt down a staff member, Robby relies on his team to pick up the slack. Later, Santos finally voices her suspicions.

Robby resorts to unorthodox methods to convince a father to allow treatment for his son. Later, Whitaker tracks down a missing patient.

While Robby attends to an elderly patient with ties to Pittsburgh's history, other members of the team attempt to resuscitate a young drowning victim.

As the night shift begins, Robby refuses to give up on a mass casualty victim. Samira and Santos each attempt risky moves.

When dozens of critical patients flood the ER, Robby and his team struggle to keep up amid quickly diminished supplies.