From publisher blurb:
Decades ago, Tempus Khan and his Chronal Horde conquered your world, but now the relentless robot forces of the Khan are after you! The mysterious robed and hooded figure says things are not as they should be, and that you have the power to set them right. Powerless and trapped in a world not your own, can you undo... the RetConQuest?
The RetConQuest is an adventure for ICONS Super-Powered Roleplaying, by game author Steve Kenson, featuring the terrible Tempus Khan from The Villainomicon and the art of "Dashing" Dan Houser.