Set in the 25th century, Armageddon-2419 A.D. follows the adventures of Anthony Rogers, an American mining engineer who falls into a state of suspended animation due to exposure to a radioactive gas. Rogers awakens nearly five centuries later to find himself in a world where America has been transformed into a technologically advanced society ruled by the totalitarian Han, an Asian empire.
Rogers becomes a key figure in the resistance against the Han, using his ingenuity and knowledge of 20th-century warfare to fight against oppression and tyranny. The novel is known for its imaginative depiction of future technology, including advanced weaponry, flying ships, and futuristic cities.