Ed is framed for murder when enemies from his past resurface. Danny and Mike secretly intervene to investigate and take matters into their own hands. Meanwhile, Sam, Nessa, Mary and Delinda desperately attempt to find tenants for their new joint-purchased home, settling on what they think to be the perfect tenants, only to discover they've misjudged the situation.
A dedicated, strait-laced FBI agent and a street-smart CIA agent are part of a new, clandestine taskforce charged with solving and preventing domestic terrorism in and around New York City.