Avsnitt 10

Space agency director Nancy MacDonald gets a lesson in the meaning of time and distance with an unexpected signal from astronaut Christopher Lindy. Lindy, the man MacDonald once loved, disappeared on a routine space mission 20 years ago. Oblivious to the time that has passed, Lindy must deal with his present situation; being alone on an unknown planet . MacDonald turns to her husband, marine biologist Greg Tilman, to help Lindy survive attacks by an alien lifeform while she and her staff look for a way to save Lindy before the window of opportunity to save him once again disappears.