You have been commissioned to retrieve 11 crystals that were lost by NASA in a crash that loosed the storage cap. As life would have it, they drifted off to the farthest planet from the Sun, Neptune. Not only that, they have traveled to Neptune's moons in groups. You have been supplied with everything (you think) you will need and don't forget to listen to the transmissions sent by the guys back at the base. Good Luck!