After bungling a job in London, Albert, an international thief, masterminds a plan to rob a Geneva bank of 7 tons of gold. Assisted by the seductive Giorgia, who works from within the bank, and six other accomplices, Albert sets himself up in an expensive hotel with a battery of electronic devices to supervise the operation.

The Professor and his men are captured by U.S. agents during an attempted train robbery. To avoid jail, they must kidnap a Latin dictator.