In the primitive wildlands, the Lunar Spirit and Blaze Tribe have long been locked in constant conflict, with scarce resources and harsh survival conditions. Ian Lowe, who arrives via time travel, shocks the tribe by starting a fire with a lighter, saves Lira, the severely injured chieftain of the Lunar Spirit Tribe, solves the problem of toxic konjac being edible, and helps the tribe pull through the survival crisis. He gradually unlocks core technologies including salt refining, iron smelting, and shield forging, forms a formal army, and fills the gaps in the tribe's combat power. Facing the desperate situation where all members of the Blaze Tribe are ill, Ian collects herbs to treat the sick and repays resentment with kindness, completely resolving the conflict between the two tribes. The two sides negotiate to merge into the Xia Tribe, launching an agricultural and commercial trade development model. However, their rich and abundant resources draw unwanted attention, bringing the threat of invasion from the outside Wolf Tribe.
