Red Skelton was already a presence on early TV, brining creations like Clem Kadiddlehopper and Freddie the Freeloader into millions of living rooms, when he made his last film for MGM, the studio that had been his movie home since 1940. The beloved funnyman portrays diamond cutter Ambrose C. Park (the middle initials stands for "Central") in The Great Diamond Robbery. Park is eager to demonstrate his talent to his employer by working on the rare Blue Goddess diamond. It's a delicate task. One mistake and the gem will be worthless. Two mistakes: it'll be worthlesser! But Park confidently takes on the job, accompanied by criminals who have convinced him they're his long-lose family and who secretly aim to steal the diamond after it's cut. Will Park find out he's being hoodwinked before it's too late? Most certainly. And that's when the antic finale begins...