Hidden behind a mystical fog in modern-day New York City, the once-grand Elysium Hotel has become a crumbling refuge for gods and mythical creatures whose powers are slowly fading. With the hotel nearly broke, utilities at risk of being shut off, and even Olympus beyond their reach, Hermes, Aphrodite, Zeus, and Poseidon realize they need a drastic solution. Their best hope may be opening the hotel to humans—but doing so requires removing the fog, and the only god powerful enough to help is Apollo, who abandoned the Olympians long ago.