Year 2040.
A group of astronauts have been sent on a dangerous mission to retrieve water from Europa, one of the several moons orbiting the planet Jupiter.
After narrowly escaping the moon to head back home, the team discovers that a nuclear war has left earth uninhabitable.
While the remaining male astronauts come to grips over their losses, one of the crew members spontaneously transforms into a woman.
Each character tries to uncover the mystery of this horrific event.
Was it an act of God, or a biological reaction for keeping the human race alive?