At least 39 alleged white supremacists were arrested in the three-year investigation.
The rules for prison gangs are clear, and "no snitching" is at the top of the list. So why did Lil' Wood turn on his former brothers?
This week seven members of the powerful race-based prison gang were sentenced for their roles in its culture of violence.
We met the warden inside one of America's most violent prisons, who is trying to change the meaning of rehabilitation.
We see how one maverick warden is trying to turn the system around by rehabilitating murderers before they get returned to the streets.
We talk to Trixie about what life is like for a transgender woman in prison.