In the year 1999... A corpse descends from the cosmos, right into your backyard.
 
A top-secret government research group called HOME is sent to investigate the remains of an alien corpse that had crash-landed in Nebraska. However, things take a turn for the worse when it is discovered that part of the alien corpse has risen from the dead, spreading a deadly infection called the STARKILL in the process. The STARKILL begins to assimilate all nearby organisms, and it's up to HOME to research and destroy this bizarre alien threat.