With the ship's engines down and drinking water running low, the crew discovers that an asteroid is on a direct collision course with Ark One and will hit them in a matter of hours.
Crew member Alicia Nevins realizes the "asteroid" is actually a comet. Since comets are made of ice, Lieutenant Brice pilots a shuttle to tether to the comet and successfully harvests enough water to refill the ship's tanks completely.
A severe water shortage compounded by a collision course with a space object. 📖 Major Plot Points