Drug addiction is a tenacious disease and so, a stint in rehab often isn't enough. Rehab might give an addict the tools to stay clean, but once out and on their own, it's tough to stay the course.

That's where a good support system comes into play and for those who go back to bad habits, a crucial part of that team is a sober coach; they're the focus of "Relapse" (A&E, 9 tonight), a powerful show from the makers of "Intervention."

"Intervention" has made an impact by showing the horrors of addiction, the toll it takes on the user and the user's family. "Relapse" continues that raw quality but gives a glimpse into the work of those who fearlessly give one-on-one help to the addicted.