Dog Pound(2010)

Angel (Mateo Morales) is removed from the detention center for medical reasons after attacking a guard and being knocked unconscious in the ensuring struggle.

Davis (Shane Kippel) is murdered in his bed by the abusive prefects.

Davis’ death triggers a riot, which Butch (Adam Butcher) uses as cover to try and escape. He makes it outside but is caught by the guards, who brutally beat him and drag him back inside.