In 1997, wars destroyed almost everything in the old world. Natural disasters and man-made disasters, the world was in chaos, and the survivors struggled to survive. Civilization fell. This was a cruel world where the strong preyed on the weak. The teenager (Munro Chambers) lived in a secluded place. He often haunted the ruins, looking for useful items in what he called "treasure hunting", and then exchanged them for food and his favorite comic book "The Explosive Warrior". During this period, the quirky girl "Apple" April (Laurence Leboeuf) broke into the teenager's territory on her own. Although she was reluctant at first, the teenager slowly accepted this new partner. When their relationship finally went a step further, the girl was suddenly captured by an evil organization and forced to participate in a bloody and cruel gladiatorial contest. In order to save April, the teenager transformed into his most admired comic hero, the Explosive Warrior, and rushed into the other's territory...