A cosmic entity called the Beyonder observes the mainstream Marvel universe. Fascinated by the presence of superheroes on Earth and their potential, this entity chooses a group of both heroes and supervillains and teleports characters against their will to "Battleworld," a planet created by the Beyonder in a distant galaxy. This world has also been stocked with alien weapons and technology. The Beyonder then declares: "I am from beyond! Slay your enemies and all that you desire shall be yours! Nothing you dream of is impossible for me to accomplish!"[13]
The heroes include the Avengers, (Captain America, Monica Rambeau, Hawkeye, Iron Man, the She-Hulk, Thor, the Wasp, and the Hulk), three members of the Fantastic Four (Human Torch, Mister Fantastic and the Thing), solo heroes (Spider-Man and Spider-Woman) and the mutant team the X-Men (Colossus, Cyclops, Nightcrawler, Professor X, Rogue, Storm, Wolverine, and Lockheed the Dragon). Magneto is featured as a hero, but immediately becomes non-aligned when the Avengers question his presence. In 2015, Deadpool's Secret Secret Wars revealed that Deadpool was also a chosen hero, but the Wasp accidentally caused the other characters to forget his involvement.
