 The main antagonists driving the plot are a series of rogue spy cabals, first internal to the United States intelligence community and then global in scope.A core part of the threat is the danger of the Intersect being either captured, making Chuck as much a liability as an asset to the government, or replicated, making Chuck obsolete or outmatched by less scrupulous spies.Chuck, Sarah, and Casey all face professional conflicts as they grow to respect each other.