As the sequel to "The Death of Superman", this film mainly tells the story of Superman's death in a battle with his rival "Doomsday", but Superman's body unexpectedly disappeared without a trace. At the same time, four competitors for the title of Superman appeared, namely: Superman's DNA made a clone of Superman - Little Superman, Iron Man using homemade high-tech armor - Iron Superman, half-human and half-machine cyborg - Cyborg, and the mysterious Kryptonian who showed no mercy to criminals - Annihilus. At the new product launch of Lute Company, four Supermen appeared in Metropolis one after another, launching a unique Superman melee. Everyone seems to be competing to become the next generation of steel heroes. At the same time, the world is still turbulent, and the dark forces seem to have begun to brew something in the dark. Everything is just a matter of time... In the world after Superman's death, what is the position of these four Supermen in the world, why are they born, and what kind of conspiracy is hidden behind them? ...