The perpetually devious Prometheus has officially taken several members of (the often woefully incompetent) Team Arrow hostage, and to compensate for the reduced manpower, Oliver has enlisted the help of some notable Arrow-verse heavy hitters like Nyssa al Ghul, Malcolm Merlyn, and a newly freed Slade Wilson to go up against Adrian Chase, Black Siren, Talia al Ghul, and the traitorous Artemis.
It’s set to be a regular “who’s who” of the Arrow-verse, distilled to its most essential elements; it represents a conflict between basically every surviving hero and villain to ever appear on Arrow.