Bob Hite comments, as Floyd Moss, card-sharp expert, demonstrates to a trio of American soldiers, the many tricks used by card-sharp gamblers in cheating unsuspecting victims. In regular and slow-motion, Moss shows how the cheats 'crimp' or 'nick' high-number cards in gin rummy. He shows the soldiers on the safest way to cut cards, and advises them to either play with friends or not at all.