Daniel25 is the 25th descendant of Daniel1, by artificial reproduction. He is the only known survivor to the cataclysms that have devastated the human race. He lives in a cave with his dog Fox, protected against any contamination. Daniel25 fills his days trying to know more about the generations before him, when his original predecessor Daniel1 was alive. Trying to figure out how the cataclysm came to happen, Daniel25 also examines the satellite pictures he receives daily of the surface of the Earth outside his cave. Guided by mysterious messages appearing on his computer screens, his life changes when he discovers the possible existence of another human survivor.