Serious concern in the world! Overcrowding precarious large masses of people in the vicinity of many megalopolis of the planet causes the proliferation of diseases and epidemics. One of them, particularly virulent, known as the X13 virus appears to be the biggest threat of the end of the century. According to the scientific elite, only the recovery of the bacteria to its origin, ie there are 20 000 years in full prehistory, and restoring its atom would save humanity. The "KA" very special government agent by volunteering, we look for a teammate to carry out this mission last chance.