After returning from the horrors of Nicaragua, panic begins to spread throughout the ship when Lt. Danny Green comes down with a mysterious illness that could be the virus. Losing faith in Rachel and her failing vaccine trials, Chandler now has to deal with a restive crew. If he fails to keep the crew together, the whole mission is in jeopardy.
A global virus pandemic nearly obliterates the earth's population, forcing the crew of a naval destroyer to confront the reality of their new existence in a dangerous new world where they are among the only survivors. They must find a way to pull humanity from the brink of extinction.