Résumé: 1959: Strange Days
Batman has followed a wooden building in Gotham City that has somehow sprouted legs. Setting his Bat-Gyro on auto-pilot, he lassos the building and rides it like a bucking bronco, trying to get it to calm down. After he does, he calls out to the one he believes is responsible for this trick -- Bat-Mite. To his surprise, Mister Mxyzptlk shows up, revealing himself to be the one responsible.
1969: Changing Times
President Richard Nixon calls the assembled heroes, Superman, Batman, Wonder Woman, the Flash, and Green Lantern, to do something about the picketers outside the White House protesting the Vietnam War. They vocally refuse to, stating that the people have a constitutional right to protest. The President then demands them to stop the war, but Superman says that the issue isn't black-or-white