Seasons & Episodes
Pilot
The drama about a disillusioned ER doctor opens with Ellison saving the life of a young boy when he intervenes in a driv
Infection
Ellison scrambles to locate Antoine when the boy disappears from his bed at the surgical center; and Polk tries to convi
Onset
John visits Antoine's father, the leader of the VCC gang, in prison, and tries to disentangle himself from his responsib
Immune Response
Gretchen makes expensive arrangements to hide Antoine in order to prevent Bridget from learning that John illegally tran
Outbreak
A gang shootout results in a flood of victims in the ER. John tries to halt the escalating violence, but to succeed he m
Diagnosis
Det. Holden of the Gang Task Force questions John about his suspicious activity; and Gretchen travels to the gang neighb
Fever
John wants to help Gretchen, but doesn't want to circumvent the law; and Samantha's doubts about John are increased by i
Relapse
John tries to rein in his compulsions, but is tested when he's tipped off about an impending massacre. Samantha, meanwhi
Deterioration
Detective Holden forces John to testify against the gang, drawing its ire; Samantha's past threatens her marriage.
Critical Condition
John and Gretchen's plans to get Antoine home are interrupted; John must do everything in his power to save his family.
