Argumento
Five years ago in London, Professor Ivo was recruited into a Secret Society of Super-Villains as a response to the Justice League.
After years with the Justice League, Steve Trevor has been replaced as their liaison with A.R.G.U.S. - despite the fact that he started that organization. He is being replaced in part because of his attachment to Wonder Woman causing friction. His replacement is Amanda Waller, whose methods he doesn't entirely approve of.
It is her plan to start another Justice League, a Justice League of America, that will serve their country's interests, rather than global interests at the arms length distance of a satellite in space. And though he doesn't believe that team could ever replace the real Justice League, Steve Trevor has been chosen to lead it. Initially he refuses, so Waller shows him an image recovered from the vacated Justice League International Headquarters; an image of Wonder Woman and Superman locked in a kiss. The two of them together is a potential threat that cannot be left unchecked, according to Waller's superiors. Precautions must be taken, and Steve is the one to take them, even if it means forming a new team under the Justice League's noses.