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.
Episode 1
A U.S. army satellite crashes on the outskirts of Piedmont, Utah, population 580, interrupting the awkward sexual foils of two teenagers. The youths decide to take the satellite into town for further inspection.
Episode 2
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.
