Building the Case

S2 E8: The department's case against the prison gangs is building and the rookies must learn to find evidence that will take them down for good. Purto redeems himself with STIU and assists in a major SNM drug bust. D'Angelo finally finds drugs in the open dormitory. Mangin and Cordova respond to an emergency involving an irate inmate. Fabian is discouraged and has to call his brother for help.