Colombian drug lords have assassinated the US ambassador and the visiting head of the FBI. Their message is clear:  Leave us alone. But they have pushed too far. The decision is made to send undercover teams to Colombia. Back in the USA, men armed with the most sophisticated tools their country can devise prepare to take the fight to the enemy. But does anyone know who the real enemy is? 

          Jack Ryan and CIA field officer John Clark must find the answer. They expect danger from outside – yet the greatest danger may come from within.