Unity Force Missions: Horizon Zero Dawn

The U.F. heroes led by Zoro and Maya are sent to find Aloy and Erend. They later visit into this world, where humanity regressed into hunter-gatherer societies of tribes, and Machines now rule this post-post-apocalyptic world. To do so, the UF must aid the tribes of this world against an unforeseen threat, while trying to uncover the state of this world, and how it became a ruin.