Brothers Adolph & Arthur Caille are mechanical geniuses. Theyve just created one of the first slot machines & 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 machines popularity. & 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!