Complications

Gretchen makes expensive arrangements to hide Antoine in order to prevent Bridget from learning that John illegally transferred him to the surgical center. That means John needs to ask the gang for money, however. In other events, a past indiscretion tests John's relationship with Samantha.

A gang shootout results in a flood of victims in the ER. John tries to halt the escalating violence, but to succeed he must navigate rival gang members and the police. Meanwhile, Gretchen tends to the young woman who sparked the bloodshed.

Det. Holden of the Gang Task Force questions John about his suspicious activity; and Gretchen travels to the gang neighborhood to save a young boy.

John wants to help Gretchen, but doesn't want to circumvent the law; and Samantha's doubts about John are increased by information provided to her by Kyle.

John tries to rein in his compulsions, but is tested when he's tipped off about an impending massacre. Samantha, meanwhile, turns to Det. Holden for answers.

Detective Holden forces John to testify against the gang, drawing its ire; Samantha's past threatens her marriage.