An ER doctor saves a young boy from a drive-by shooting; when he finds out he is still marked for death he becomes compelled to save him.

John must find a missing patient, or face the consequences of losing a gang leader's son; Gretchen tries to convince a patient to lie about her medical condition in order to keep John clear of their supervisor's suspicions.

John visits Antoine's father in prison to try and disentangle himself from his responsibilities with Antoine; Gretchen confronts Hillary's abusive boyfriend and things get out of control.

Gretchen makes expensive arrangements to hide the child; John must ask the gang for money; Samantha's relationship with John is tested.

When victims of a gang shootout show in the ER, John must navigate rival gang members and police; Gretchen tends to a young woman.

Detective Holden grills John about his suspicious activity; Gretchen travels to the gang neighbourhood to help a boy.