Mac has her Attorney General investigate the cause of the growing urban unrest in Prince George’s County, Maryland. Mac learns that the county is where Chief of Staff Jim Gardner is originally from while Gardner has an unexpected visitor from the past who tells him about the situation in Maryland. Meanwhile, Mac must deal with a crisis when surface-to-air missiles that were lost in a military plane crash over Pakistan have resurfaced on the black market. Templeton continues to campaign for the Templeton Act, which Mac threatens to veto.