Robin insists that Barney ask her dad for permission to marry her; Ted tries to bury his feelings by throwing himself into wedding planning.
On the season premiere, Shaun treats a patient with an illness that is not only unpredictable, but also unlike anything they’ve seen before.
Dr. Murphy, Dr. Reznick and Dr. Lim treat a woman who has autism and a delicate brain condition; Lea and Shaun work to figure out their friendship and roommate status.
In the aftermath of the quarantine, the staff tries to return to their normal routines as the Public Health office reviews what transpired.
Shaun and Marcus determine that their patient has been infected with COVID-19; Claire looks for a way to grieve Melendez’s death.
