An alien race has made secret contact with the United States. Entering into talks, the government and the extraterrestrials reach accord on a trade pack. Arriving on Earth, the aliens soon make the cost of the agreements clear when they proceed upon their true mission: the harvesting of human DNA. Realizing their mistake, the government calls upon their top special agent (Steven Seagal) and orders him to deal with the menace. Using all the skills at his command, the agent begins his task, a dangerous assignment that's hampered by the government's insistence the public never know of the aliens' existence.