When Ali died in her sleep, she was offered a choice between the afterlife or rebirth. She chose rebirth and was given the powers and memories of several people. When she wakes, the year is 2012 and she is introduced to the Strategic Homeland Enforcement and Logistics Division and the Avengers' lives are never the same again.
An average guy somehow finds himself in the DC Universe. By some sort of miracle, he didn't go mad and ended up planning an escape. He nearly succeeded. Perhaps he succeeded a little too much. The DC universe lost a potential hero but that doesn't mean he can't be one in another place. The only problem is that the line between friend and foe is truly blurred here.