After being captured during a bank robbery, a cowboy is sent to a prison located in a swamp, where he contracts malaria. He soon escapes and, with the help of a Mexican, sets out to track down his partner, who escaped from the bank robbery with all the money.

• West Film
• Antonio Sabàto
• John Ireland
• Piero Vida
• Nadia Marconi
• Fernando Sancho
• Mirko Ellis
• Gloria Milland
• Giovanni Di Benedetto