The President's son and daughter are abducted, and Detective Alex Cross suspects that agents inside the government may be responsible. At the same time, a deadly contagion in the water supply cripples half of the capital, and Alex discovers that someone may be about to unleash the most devastating attack America has ever known. As his window for solving the crimes narrows, Alex makes a decision that goes against everything he believes--one that may decide the fate of the entire country.