Herobrine's undead army, the Nether Horde, and Ender Watchers clash as humans led by Ser Patrick and Ser Gavin struggle to survive during an eternal night, awaiting the Entity's arrival in a dystopian world where factions vie for control.

In a dystopian Overworld where Herobrine's undead army has decimated mankind and its home, the Undead luminary finds the Undead reign contested by the Nether Horde, a faction emerging from the depths of a hellish otherealm, whose risen leader Glutton has been driven so mad by his revival the general Naeus assumes command of the army, leading it in its destructive conquest for dominance. Meanwhile the elusive Ender Watchers hastily prepare for the coming of the Entity and his Red Legion upon the Entity's Eclipse, knowing that they will be easily destroyed by this foe, although their matriarch Ceris still argues against this fate. In the Overworld, mankind, on the verge of extinction, battles for their home against the newcomers who have claimed it, led by Ser Patrick and Ser Gavin. Thus starts a monstrous war between all three realms during the Overworld's eternal night, and only one faction can be victorious.