A group of renegades who hold the fate of the world in their hands meet their match in an army of one in this action thriller. Matt Hendricks (Dolph Lundgren) is a Special Forces officer with the United States Marines whose significant other, Dr. Lynda Christian (Meilani Paul), is a scientist specializing in virus research. Lynda, on a high security assignment with the government, is travelling from Russia to the United States via a U.S. Navy submarine; she and Matt have had a serious argument, and in hopes of patching things up, Matt arranges to come back to America on the same sub. However, their romantic problems soon take a back seat to more pressing concerns. Lynda is helping to escort a cache of Agent Red back to the States; Agent Red is a powerful biological weapon, with no known antidote, that could kill the population of a major city in a matter of hours. Word of the deadly cargo has leaked out to a group of fanatical Russian terrorists, who have ambushed the sub and stolen the powerful virus. The terrorists have threatened to release Agent Red in New York and Moscow via the sub's missile system if their demands aren't met, and Matt becomes the world's last defense against destruction as he takes on the invaders. Agent Red was also released under the title Captured.