Earth's viability for settlement amid his planet's dwindling resources. Upon landing, he discovers a village of primitive tree-dwellers and uses his advanced technology to destroy their homes, believing there is no intelligent life there. However, one of the tree-dwellers, returning from a hunt, seeks revenge after witnessing the destruction of his community. In a fateful encounter, the tree-dweller manages to kill Krai with a thrown stone, showcasing the unexpected consequences of the alien's ruthless mission. The narrative culminates in a confrontation between the two species, highlighting the theme of revenge and survival against a backdrop of technological disparity. (This is an automatically generated summary.)