In 2172, most of the Earth is uninhabitable. The world is destroyed by radiation, climate change is so catastrophic that people move to space colonies. There is a brutal war between Nigeria and the Republic of Biafra, involving deadly mEkhs and soldiers receiving artificial organs and bionic limbs to survive. Little Aifi grows up in the Battle Girls camp, whom Onayi - the eldest of the girls - once picked up in a war-torn village. Aifi has no idea who she is or why she is so unlike the others until one day she is captured by the enemy. After a desperate struggle, Onayi decides that Aifi is dead. Beside herself with grief, she becomes an uncompromising, unstoppable and legendary warrior. But years later, life gives her a terrible surprise...