All the episodes start with an introductory video and song. In this episode, former Chief of International Operations for DEA, Mike Vigil, discusses Mexico, the Mexican government, and the drug cartels that run many parts of Mexico and the Mexican government. Just how powerful are the cartels? Are there mercenaries in Mexico? How are cartel sicarios trained? Is the US government allowed to operate in Mexico? And many other topics. The hosts are retired San Diego Police Detective Sergeant David Contreras, retired Calexico Police Chief Gonzalo “Chalo” Gerardo, and retired San Diego Sheriff's Detective Benny Cruz.

All the episodes start with an introductory video and song. In this episode, Los Angeles Sheriff's Chaplains Fred Krause and Ruben Nava discuss the importance of chaplains in law enforcement. Tonight, Ruben and Fred will take us on a journey through the streets, alleys, lineups, triumphs, and tragedies chaplains endure during a shift. The hosts of Ash Wednesday are San Diego Police Detective Sergeants David Contreras & Doug Collier, along with Bobby Afce, a former Phoenix Police Detective.

In this episode, Sergeant Valdemar discusses how the Mexican Mafia (EME) prison gang operates its business in and out of prison. Valdemar talks about the Castro brothers, both members of the EME. One of them, Ernest, defected from the gang and became a police informant, testifying against the EME. The EME killed the other after being a loyal soldier to them. Sergeant Valdemar talks about the deadly ambush involving the LA Sheriff's Gang Unit and the VNE gang. Reminder: The episode starts with an introductory video and music. If you want to see it, visit our YouTube channel on The Gray Line, The Story Behind The Blue Line.