Avengers (EMH)

History
When the worst criminals in the world were broken out of prison, Earth's greatest champions banded together and tried to stop the escape but when the worst of the captured Villians Graviton escapes and starts destroying New York. The Heroes work together and are able to defeat him. However a lot of Villians had escaped from S.H.I.E.L.D. prisons all over the world and so they decided to work together to recapture all of the escaped super villians.