Independent (abridged)

Iran has been invaded. And America responds in a grueling counterattack by air, by sea - and by a brave new technology that will redefine war. The most sophisticated laser defense system ever. It is called Silver Tower. And it will change the balance of world power forever.

Off the coast of southern Florida, a deadly war is being waged that threatens our national security. Thousands of kilos of illicit drugs are dumped on our shores annually. But "business as usual" takes a quite different turn when Sandra Geffar and Ian Hardcastle (heads of the U.S. Customs Department and the Coast Guard respectively) put their departmental and personal squabbles behind them and team up in a daring plan to put an end to airborne smuggling.