ATF Agent Richard Boehning uncovers murders committed by the most violent white supremacist gang in the U.S., the Aryan Brotherhood of Texas. Plus, an exclusive interview with former ABT member Dale Jameton serving life for the murder of Breanna Taylor.

Agent Richard Boehning discovers Steve ‘Stainless’ Cooke, one of the leaders of the Aryan Brotherhood of Texas, lives in his neighborhood. Later, a murdered ABT gang member turns up outside Houston -- it’s the break investigators have been waiting for.

The discovery of a secret cache of documents reveals how the Aryan Brotherhood of Texas operates as a criminal enterprise similar to the Italian Mafia. This discovery triggers the most extensive racketeering investigation in Texas history.