S4, E6: Ben, 25, experienced a childhood filled with domestic violence, homelessness and isolation. He never got to fulfill the potential of his 170 I.Q. and found a new way to find comfort when he was in high school--a drug called DXM. Now, Ben spends his days shoplifting, panhandling, and even prostituting himself to finance his drug addiction. Desperate to help Ben, his mother arranges an intervention that's her last hope for saving his life. Next, a talented singer and the owner of his own karaoke business, 22-year-old Josh is addicted to food and weighs 550 lbs. Josh's father, Rex, has the same weight problem--at 317 lbs., he's a diabetic who's had six strokes. Now, Rex watches helplessly as Josh follows in his footsteps toward an early death. Josh's mother and two brothers hope that an intervention will be a wake-up call for the whole family to choose health.