Marty McFly is a fictional character and the protagonist of the Back to the Future franchise. He is a high school student living in the fictional town of Hill Valley, California, who accidentally becomes a time traveler and alters history after his scientist friend Emmett Brown invents a DeLorean time machine.
The heroes of Earth all work together as Dr. Doom is trying to use a combination of tech and magic to travel to hell, absorb Mephisto's power along with several individuals' power notably Galactus to rule Earth under his rule.