An intrepid team of stunt experts stage a daring air, sea and land rescue of a kidnapped movie star from the clutches of a suave, modern-day pirate who rules a sovereign fortress state in the middle of the Gulf of Mexico.

When the young Texas Ranger, John Reid, is the sole survivor of an ambush arranged by the militaristic outlaw leader, Butch Cavendich, he is rescued by an old childhood Comanche friend, Tonto. When he recovers from his wounds, he dedicates his life to fighting the evil that Cavendich represents. To this end, John Reid becomes the great masked western hero, The Lone Ranger. With the help of Tonto, the pair go to rescue President Grant when Cavendich takes him hostage.