Bruce Wayne wakes up to a world where his parents, Thomas and Martha Wayne, were never murdered. In this "ideal" life:
It explores Bruce's tragic desire for a normal life and the crushing realization that his "happy" reality is a fabrication meant to keep him imprisoned. Batman: The Animated Series Season 1 Episode 26
He is not Batman; in fact, he sees another Batman patrolling Gotham. He is engaged to . Bruce Wayne wakes up to a world where
Kevin Conroy famously cited this as his favorite episode, as it allowed him to play Bruce Wayne with a range of confusion, joy, and eventual fury. Perchance to Dream - Batman:The Animated Series Wiki Thomas and Martha Wayne