Iran has been planning a revenge attack on America for years, which involves assassinating U.S. President J. P. Dellenbaugh and neutralizing their most successful agent, Dewey Andreas. The first pre-emptive attack against Dewey fails, but it worries the head of the CIA enough that he sends him out of town and off the grid. Muhammed el-Shakib, head of Iran's military and intelligence agency, launches a bold strike. When the President arrives in New York to address the U.N., embedded terrorist assets blow up the bridges and tunnels that connect Manhattan to the mainland. Taking control of the island with its hidden forces, they race to the U.N. in search of Dellenbaugh and to launch an even deadlier attack that will wreak unimaginable destruction on the country itself.