I've decided to make my own LEGO space series of sets, sorta' a spin-off of Mars Mission. It's based a century afterward, when NASA sends a new group for further exploration. When they get there, they find that the old base was destroyed sometime in the past. Upon further examination, they find that it happened shortly before Earth stopped recieving transmissions.

Two miles to the North, they find the equally old remains of an Alien breeding pit and encampent. But, they also find signs of recent life in the wreckage, making them believe that some of the Aliens survived. Their suspicions are confirmed as an Alien Viper comes over the horizon, followed by some walkers. Upon seeing the Humans, the Viper and Walkers open fire, scaring them off. After that, a new war begins, this time over fields of a new type of crystal, this time with enough energy per crystal to power the whole of the United States.

Heh, I just made that storyline up on the spot. B)