When Khonshu, the Moon God, and Galactus, the World-Devourer, clash, Moon Knight is caught in the middle! To keep the peace, Moon Knight becomes the newest herald of Galactus - but his alters cause the Power Cosmic to manifest in startling new ways! Unless Moon Knight can conquer his new powers - and a few former heralds - the Earth itself faces extinction!
— Description from Comic Vine community (comicvine.gamespot.com).
