The Andromeda Strain

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.

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.