In 1974, four astronauts, silver shoe-clad Dorothy, overweight Doc, goofy Charlie, and wooden Steve, crash land on Mars when taking readings, with only four days of supplies. They must try to survive on the surface, which is barren except for some canals with huge maggots with fins. After embarking through a golden igneous cavern, braving a storm and finding an unmanned Earth vessel, they discover a golden road which leads them to the unchanging ruins of what was once a beautiful Martian city. The Martians are modeled on the Flatheads of Oz, and their collective consciousness, the "Wizard," forbids them to leave until they perform a very small task...

Set in Prohibition era Chicago, bootlegger Robbo and his cronies refuse to pay the greedy Guy Gisborne a cut of their profits after Guy shoots mob boss Big Jim and takes over. When Big Jim's daughter, Marian, gives Robbo a large sum, believing he has avenged her father's death, the gangster donates to an orphanage, cementing his reputation as a softhearted hood.

Jobless sportswriter Eddie Willis is hired by corrupt fight promoter Nick Benko to promote his current protégé, an unknown Argentinian boxer named Toro Moreno. Although Moreno is a hulking giant, his chances for success are hampered by a powder-puff punch and a glass jaw. Exploiting Willis' reputation for integrity and standing in the boxing community, Benko arranges a series of fixed fights that propel the unsophisticated Moreno to #1 contender for the championship. The reigning champ, the sadistic Buddy Brannen, harbors resentment at the publicity Toro has been receiving and vows to viciously punish him in the ring. Eddie must now decide whether or not to tell the naive Toro the truth.