Among the cultural figures of the Old West, Frederick Remington stands head and shoulders above the rest-literally. A good-natured ogre by size and appetite, the artist portrays the West with such skill that the American government entrusts his safety to Lucky Luke. Looking after such a national treasure is not usually an easy task, but Luke will soon discover that Remington hardly needs protecting-except maybe from his own excessive impulses...

Brothers Adolph and Arthur Caille are mechanical geniuses. They've just created one of the first slot machines and have presented it to their local senator, a notorious gambler. Much taken with the device, he agrees to send them on a tour of American cities to test the machine's popularity. And, to escort them on this dangerous journey, he calls on his old friend Lucky Luke - So begins the wacky tale of how the one-armed bandit conquered the West!