Brad Randolph (David Carradine) is the World Champion aerobatic pilot but now, in his early 40s, he faces many challenges to maintain his position. His physical struggles are heightened by the presence of a youthful competitor, Tom Loomis (Joseph Bottoms). Intertwined with his professional struggles is his relationship with Helen St. Clair (Jennifer O'Neil).
Misery is brought to a small group of Sho in the Kalahari desert in the form of a cola bottle. In his quest to throw the evil object over the edge of the earth, Xixo encounters Western "civilization," a haphazard doctor and a tyranical despot.
Three escaped criminals from the planet Krypton test the Man of Steel's mettle. Led by Gen. Zod, the Kryptonians take control of the White House and partner with Lex Luthor to destroy Superman and rule the world.