The peoples are running from a gigant criature: Doomsday! Lex Luthor and Kingpin have realeased him, and are terrorizing the city! The heroes fight them and win, and then go after many more intelligent minds and other helpers, including the green lantern corps, x men, and the Fantastic 4! Then they went after Loki, Braniac, and Darkseid. But Superman hears many screams, and go to the streets, with Wonder Woman and Quicksilver. Captain America and Superman are playing videogame. The two groups of heroes were doing well at all. The Flash are disputing a running with Quicksilver, and Black Widow are talking with Wonder Woman about the S.H.I.E.L.D. One more intelligent mind can help them. After that, the Avengers are in the Avengers Tower, with the Justice League. Iron Man explains the situation to Doom, and he accept. The two heroes figth with the Doombots and the Green Goblin, and, finally, can entrace in the Latveria's Throne Room. Iron Man explains that Doctor Doom, or Victor von Doom, are one of the most intelligent minds in the Marvel Universe. Him and Batman go to Latveria, searching for Doctor Doom. They think that they need to stop doom.But Iron Man is certain that he is intelligent and powerful to create an other portal. They then find intellegent minds and see a picture of Doctor Doom at the Tower. Brainiac and Darkseid thinks that can dominate all the other universes, and begin by the Marvel Universe. But they are atacked by a group of parademons! So Batman explains that the portal has a defect and can go to any alternative universe. They go to space, and find the Milano Spaceship. The DC heroes explain what happened, and Hawkeye says that only the most intelligent minds of the World can make a new portal to the DC Universe. He needs to contact Iron Man, but he is in space, with the Guardians of the Galaxy.

Only Captain America and Hawkeye are in the tower. Batman see the Avengers Tower, and he thinks that maybe the group needs go to the tower. This heroes escapes from this SHIELD facility, and are in New York now.

The heroes are in an SHIELD facility, and Nick Fury and Agent Coulson thinks that the group is evil. Instead of destroying it, it changes to the Marvel Universe!!! after the portal changes to Marvel Universe, he sucks the heroes to Marvel Universe. Then Darkseid's parademons open a portal to Apokolips but Superman, Batman, Green Lantern, Wonder Woman, and Flash come and attack the portal. The game starts out with Darkeid, Braniac, Lex, Grodd breaking out of jail and running away.

Dc vs marvel game online