When a small twin engine plane lands in the middle of the night on a deserted road in the Everglades it normally spells illegal drugs. When the pilot is found shot in the head and the empty plane abandoned it confirms it. Slowly the DEA investigating team begins to realize that it was not drugs that were smuggled in that night. Something highly radioactive was aboard the plane and was now somewhere on American soil. Alerted by the DEA, FBI special agent Ben Fletcher is temporarily sidetracked by a robbery and hostaage situation in a downtown bank. The plot gets even thicker when it is discovered that terrorists have placed a nuclear bomb in the banks locked vault. It gets even more tense when it is discovered that the clock is counting down.