Topics: Harleen, Event Leviathan, Action Comics, Flash Forward, Batman and more! Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window) Post navigation Episode 543 is here: Titans Season 2 E2, Batman 78, Doomsday Clock 11, Millennium 1, Superman 14 Episode 544 is up: Titans Season 2 E3 and 4, Harleen 1, Event Leviathan 4, Action Comics 1015, Flash Forward 1: