This hourlong drama is set inside the nation's ultimate fortress: the Pentagon. It's a hub of highly explosive conflicts between American military heroes and the civilians to whom they report -- a world where crises can escalate into life-and-death climaxes, for individuals or entire nations. Critical decisions by intelligence officers in the war room -- and the execution of these decisions by covert special ops on the battlefield -- happen every day. The No. 1 mission is survival of the state, an often delicate balance between protecting the homeland and protecting either all of mankind or the life of a lone soldier.