In the country of Elkabar, King Ibn Borca is conducting a brisk slave business with the aid of supplier Karl de Groot. de Groot raids into neighboring countries. The IMF team must put the two men out of business. Barney lets himself be captured by de Groot, gets the info on a cell, then escapes with the info so they can create an exact duplicate of the cell. Jim "sells" Cinnamon to de Groot, then Willy retrieves her and captures de Groot. Jim then approaches de Groot's partner Jara and tells him he killed de Groot and that Jara has a new partner...

Willy kidnaps Princess Amara, wife of the king's brother Fasar, who knows nothing of his brother's slave racket. They put Amara in the duplicate cell and then Rollin-as-Borca tells her she will be sold at the next auction. Jim delivers Cinnamon to Borca, and then they dress up a sedated Amara as Cinnamon, and Barney and Willy switch her for Cinnamon. Rollin, masquerading as an Interpol agent, convinces Fasar to go to a slave auction that Borca is holding. Disguised, the men watch as "Cinnamon" is put up for auction. Fasar reveals himself and Amara's disguise is revealed. She tells her husband of the slave cells. Borca is killed and Fasar puts an end to slavery in Elkabar.