Humankind has been annihilated by drought and the nuclear and biological conflicts following the Great Breakdown but some desperate bands of humans still survive.

Global warming has taken its terrible toll. The seas have dried up and deserts cover much of the Earth's surface. Humankind has been annihilated by drought and the nuclear and biological conflicts following the Great Breakdown. Desperate bands of humans still survive. Some live far underground, away from the searing temperatures and ongoing conflicts on the surface; others scrape a living in the remains of shattered cities above ground. In Paris, Pierre lives like an animal among the sand-drifted ruins of the once great city. Near death, he faces a choice: join the strangers heading south in search of water, or remain in the city and perish. Guardians of the Phoenix tells the story of the last survivors on planet Earth, their desperate fight for survival and their last hope to save the world.