By: Marvel Release Date: 4/18/2007 Written by: Brian Michael Bendis Art by: Frank Cho ULTRON IS BACK and, yes, now he's a she. What?? Ultron's a girl?? It's Ultron as only Frank Cho can bring it. And the Mighty Avengers haven't had a moment to get to know each other before they are thrown into one of the most epic adventures in the history of the Avengers.