After the devastating events of Avengers: Infinity War, the universe is in ruins due to the efforts of the Mad Titan, Thanos. With the help of remaining allies, the Avengers must assemble once more in order to undo Thanos' actions and restore order to the universe once and for all, no matter what consequences may be in store.

Two boys meet at an opera training school in Peking in 1924. Their resulting friendship will span nearly 70 years and endure some of the most troublesome times in China's history.