Immortals + Boredom = Catastrophe. Something old and dangerous is waking, making the immortals act out on their crazier instincts.
Odin goes off to Midgard to live in a retirement home. Anubis leaves his job to go on a beach vacation. Mab takes off to New Orleans for Samhain fun. Yue Lao and Cupid exchange roles to the detriment of mortals. Bast, Apollo and a Kitsune out-prank each other - leading to a blood bath. Pan and Poseidon...