Through the years and many scientific breakthroughs earth found a problem in the air. There was a virus in people on earth that causes them to die if infected, they are calling it the Z-Virus. The scientists at the CDC in Atlanta Georgia have asked the ark for help.The ark decided to send some of the best students and guards down to help. Of all the people set to the Ark, it was found that due to the genetic mutations from synthesised air that only 100 were immune to the Z-Virus. The Ark must send their best in hopes to save the human race from eating itself.