A team of special agents assigned to investigating scandals and crimes associated with the Navy and Marine Corps get more than they bargained for in the twelfth season of NCIS (Naval Criminal Investigative Service). Led by Special Agent Leroy Jethro Gibbs (Mark Harmon), the agents often use unorthodox, yet highly effective means to get to the bottom of tricky cases tied to the US military. This multi-disc release collects every episode from season twelve of the series.