Intervention - Season 19 Episode 4 The Heroin Triangle: Chapter 5

Interventionist Michael Gonzales attempts to get Toni's mother, father, and sister on the same page to intervene on Toni, but Carla's belligerent behavior threatens to derail the process before it even begins. We meet Kiersten and David, a young, heroin-addicted couple living in a co-dependent relationship with David's mother, Linda. Kiersten prepares for a mandatory meeting with her probation officer by hiding synthetic urine in her boot, in case of a drug screening.