From the back cover:
A Megaverse Gone Mad!
Prepare yourself for a railgun-shredding, mega-powered magic flinging journey into a post-post-apocalyptic world where supernatural horrors vie with technological empires for master of the world.
This is the world of RIFTS.
Unpredictable holes in the very fabric of space and time open the way to countless creatures, beings, and dangers. Whatever you imagine - whatever you fera - it's somewhere in this war-and-chaos ravaged world.
The Tomorrow Legion is Ready.
In the battle for survival, the Tomorrow Legion brings together the greatest, the bravest, and the craziest to stand against an infinity of threats. They stand for a better future than the past they've known.