The film starts two years after the events that occurred in the end of Fullmetal Alchemist, where he recovered his arm and leg, and his brother's body. However, he was dragged from his homeworld through the Gate of Alchemy—the source of all alchemical energy—to a parallel world of Earth in 1923, which is fundamentally governed by the laws of modern science instead of alchemy. When it occurred, he was stripped of his alchemical powers and his newly restored arm and leg.