All that atomic testing out in the Arizona deserts back in the 1950's has caused something terrible to happen. Most humans don't know the danger that lurks under the desert sands, but they soon will. You are the only one who knows what is coming, and you must save the others before it is too late.

Adapted from the popular Amiga title, although the Genesis port bears more resemblance to the movie Tremors than to it's original inspiration, the classic film Them!