Description by publisher:
When a space exploration spacecraft was in its way back home, the waste filter detects the presence of an infection.
According to analyzes, the alien virus is dominating one member of the crew, and is ready to infect the others.
While the crew try to find out who is infected and seek a cure, one of the ship's engines is defective, and an anonymous message arrives to all the crew: "We are already doomed, if this ship arrives on Earth, humanity will be contaminated".
Players have a few days to eliminate the alien infection before the ship arrives on Earth, however, not all players have that goal.
Before the end of the trip, the infected player must contaminate at least half of the crew, and the saboteur wants to blow up the ship.