John tries to save a suicidal teen in a situation that hits extremely close to home. Sammy convinces a former addict to be an informant, with devastating consequences. Tang gets a visit from someone in her past. Lydia and Ruben investigate a supposed home invasion that appears to have been staged to cover up murder.

Things just go from bad to worse when Jessica is served legal papers in the morning and involved in a shooting in the evening. Sammy holds a grudge against Ben for not backing him up over drug evidence that may have been planted during an arrest. Lydia comes to a decision about her situation.