A U.S. satellite crash-lands near a small town in Utah, unleashing a deadly plague that kills virtually everyone except two survivors, who may provide clues to immunizing the population. As the military attempts to quarantine the area, a team of highly specialized scientists is assembled to find a cure and stop the spread of the alien pathogen, code-named Andromeda.
While the team of scientists are still frantically searching for a cure, investigative reporter Jack Nash literally comes under fire. The president has to make a difficult decision and in order to prevent a nuclear disaster that would actually strengthen the "Andromeda Strain", the team have to overcome the building's safeguards aimed at preventing contamination.
After a satellite crashes, the entire population of a small town is wiped out by a deadly plague, except for one man and one baby. A team of specialists is activated and tasked to find a cure for what is called "The Andromeda Strain". The army tries to discredit and silence an addicted reporter who discovers that something dangerous is going on.