It's been more than 17 years since Doctor Destroyer blasted Detroit into rubble. But today, the gleaming skyscrapers of Millennium City stand upon the ashes of Detroit as an example of innovation and determination, drawing Heroes from far and wide. The world’s most powerful superteam, the Champions, can be found in Millennium City, in addition to other colorful heroes, like the genetically-altered genius gorilla Dr. Silverback or the super strong cop codenamed Kodiak.

Of course, there are superhuman villains as well. High-tech thieves and mercenaries plague the city’s corporations and research facilities. The New Purple Gang has formed out of the remnants of Detroit’s organized crime families. Menaces like VIPER, PSI and DEMON lurk in the shadows, waiting for their chance to strike. The unpredictable Foxbat is continually plotting one zany caper after another, while the threat of Dr. Destroyer hangs in the air like a gathering storm.