For those unfamiliar with Flashpoint, it was a universe-changing event that began when Barry Allen a.k.a. The Flash traveled back in time to prevent his mother from being murdered when he was a child. This wound up changing the futures of just about every major DC hero, including Batman, thanks to the ripple effect of Chaos Theory. In the Dark Knight's new timeline, it wasn't Thomas and Martha Wayne who were shot and killed by a mugger in an alley, but instead the young Bruce Wayne. This event not only lead Thomas on a path to become his own version of Gotham's famous protector, but saw Martha going completely crazy and turning into The Joker. It's worth noting that Flashpoint was just adapted on the on-going third season of the Flash television series, but because there is no on-screen Batman in the DC TV continuity, we haven't seen those elements of the comics adapted yet.