Beloved Empress Navier rules the Eastern Empire alongside Emperor Sovieshu. But when Sovieshu falls for a runaway slave and demands a divorce, Navier will agree on one condition: that she's given approval to remarry rival Prince Heinrey of the Western Kingdom.
Fresh off gold at the 1960 Olympics, young boxer Muhammad Ali (then known as Cassius Clay) sets his sights on the Heavyweight Championship. Contending with newfound fame, self-doubt, family conflict and a politically charged America, the once-in-a-generation prodigy discovers his greatest opponent won't be in the ring, but in a society that isn't ready for him to become his own man.