The new episode "Conquering the Wall" looks back at an escape from Pittsburgh State Penitentiary, when criminal mastermind Nuno Pontes led a small party of inmates through a tunnel they had dug under the prison wall. The fugitives made it as far as Texas before they were captured and returned to incarceration. Pontes had used his above-average intelligence and seemingly obedient demeanor to secure prison jobs that afforded him access to areas normally off-limits to prisoners at the facility.