Having his plans foiled by many heroes individually countless times, Dr. Doom believes he can finally rule the world by gathering every one of the most dangerous villains, forming the Masters of Evil, to rule the world by harnessing the power of the Tesseract. The Avengers, the Guardians of the Galaxy, the Fantastic Four, the Defenders, the X-Men, & more of Earth's mightiest heroes become the Ultimate Alliance and assemble together to save the world and put the villains behind bars before Doom's careless & unrestrained use of the Tesseract and Odin's power destroys the universe. (Based on Marvel Ultimate Alliance & Marvel Heroes (Online Game))
