Los Vengadores y la Liga de la Justica despiertan en la NADA, un extraño les ofrece una segunda oportunidad como jóvenes enviándolos a un nuevo universo MHA (alterno)
Something has brought the Justice League into the Avengers world and now both teams will need to work together to round up the visiting heros and get them home.
When the Avengers investigate another of Doctor Doom's plots for world domination, Doom transports them from their Earth to another Earth to prevent them from interfering with him. However, the Avengers form an unexpected alliance with the Justice League and return to their Earth to foil Doctor Doom's evil plans. Rated T for sci-fi action/violence and battle sequences.
Worlds collide when the two A.I. villains, Ultron and Brainiac join forces to take the city of New York and imprison it. The Avengers travel to a new world to take back the city while also meeting a group known as the Justice League, whom they've been misled into thinking that are the ones responsible for their world being invaded.
Bruce Wayne puts together an alliance to defend mankind from a coming evil. He gets help in this from heroes from another dimension, courtesy of a man named Stan. Captain America, The Winter Soldier, The Falcon, The Black Widow, The Scarlet Witch, and Vision. But other heroes will join the fight as well.