Supernatural - Season 2, Episode 19, Folsom Prison Blues
Folsom Prison Blues
When an old block is reopened in the Green River County Detention Center after thirty years, a fiend is released, killing the interns. Three months later, Dean and Sam are arrested during a heist to be sent to the haunted prison to help Deacon, a former friend of their father. While FBI Agent Victor Henricksen presses Dean, the public defender Mara Daniels believes the brothers are not guilty of most of the inconsistent charges against them, and helps the Winchester brothers in the end.