In Scott Snyder's 'Batman: Last Knight on Earth,' the Dark Knight awakens in a bizarre, post-apocalyptic wasteland with no memory of his past. He is mysteriously young again, navigating a desolate world he doesn't recognize. His only companion is the disembodied, yet still living, head of the Joker, contained within a lantern. Together, this unlikely duo must traverse the ravaged landscape to uncover the shocking truth behind the world's destruction and confront the tyrannical villain known as Omega, who rules what's left of humanity. It's a definitive Batman tale that redefines the hero's legacy.