In this historical adventure saga, Balam (George Chakiris) is the son of the ruler of the Mayan people; when his father is killed in battle, Balam succeeds his father as King and leads his followers out of Mexico to a coastal region. The Mayan's new home, however, is already the province of a hostile Indian tribe led by Black Eagle (Yul Brynner), who leads a raid against the Mayan's camp. Balam is severely injured, but Black Eagle's wife Ixchel (Shirley Ann Field) tends to his wounds, and eventually the two leaders agree to settle their differences and coexist in peace. Hunac Ceel (Leo Gordon), Balam's old nemesis, is not so forgiving. He has followed the Mayans to their new home, where he and his troops mount a furious attack, with the Indians and the Mayans leading a united front against the invaders. Kings of the Sun also features Richard Basehart, Brad Dexter, and Barry Morse.