A patient's treatment plan takes an unexpected turn when Max gets overly invested. Meanwhile, Reynolds celebrates his birthday with some help from the hospital and Kapoor grapples with a case that hits close to home.

Reynolds struggles to help a young cystic fibrosis patient with curious symptoms. Kapoor finally comes face-to-face with Ella after their awkward encounter. Sharpe takes a major step in her personal life.

Max invokes a hospital-wide census in effort to get to know the staff of New Amsterdam on a deeper level. Reynolds takes a leap of faith that lands him in hot water, and Dr. Castro extends her treatment plan to more patients in the hospital.

Max and Luna make friends in an unexpected place as Max struggles with the realities of being a single father. Meanwhile, Kapoor takes a big step in order to help his family.

Max races against the clock to rearrange the budget when faced with employees going unpaid, while Kapoor is presented with a device that's the future of medicine. Meanwhile, Iggy goes against the norms to prove a diagnosis and Bloom gets an unexpected visitor.

When Sharpe notices the hospital's blood supply is running dangerously low, Max concocts a plan to get New Amsterdam out of trouble. Reynolds realizes he has a thing or two to learn from Bloom while making peace with his new position. Iggy helps a patient face their inner demons.

It's National HIV Testing Day and Max has offered free care to all HIV+ patients who come to New Amsterdam. Bloom and Reynolds butt heads over their opposing bedside manners. Iggy eagerly awaits the return of a friend. Sharpe discovers that she may need more hands on with her niece.

Reynolds receives a dramatic offer. Max scours the hospital after he misplaces his wedding ring. Iggy contemplates a serious life change. Bloom learns some potentially life-changing news about Leyla.

Max and Sharpe wake up to a new, more personal dynamic. Iggy calls upon an old contact to help with an explosive situation at the hospital. Bloom begins a tricky dynamic with her new Emergency Department residents. Reynolds finds himself in an awkward position with Dr. Baptiste and his wife, Dr. Lyn Malvo.

Dr. Reynolds and Dr. Malvo have a heart-to-heart with Dr. Baptiste. Max learns a little more about Sharpe when someone from her past resurfaces. Iggy plays referee between two young patients and their families. Dr. Wilder reconsiders Max’s offer to join the staff.

As Max and Dr. Sharpe prepare to depart for London, a deadly superbug hits the hospital and draws them back in. Leyla confronts Bloom about the secret she has been hiding. Iggy digs deep to help two grieving parents confront the reality that their son is gone.

Max formulates a bold plan to help New Amsterdam before it’s too late. Reynolds and Dr. Fuentes fight over the best way to handle a risky surgery. Dr. Wilder asks Dr. Castries for help with a patient with terminal cancer. Iggy helps a father and son deal with vastly different views on a shared trauma.

Max discovers the extent to which Dr. Fuentes' cuts are severely damaging New Amsterdam and decides it's now or never. Iggy takes an unconventional approach to reach a young patient in need. Reynolds and Wilder perform a risky, life-saving surgery on unborn twins.

Reynolds finds himself caught between a chance for love and an opportunity to spend precious time with his father. Realizing the consequences of her actions, Bloom makes an unexpected move forward with her sister. Max helps an ICU intern struggling with the loss of a patient. Dr. Wilder receives an offer that forces her to choose between her community and her career.