Lucky Luke (Terence Hill) is the fastest gun in the West, even faster than his own shadow. He is the sheriff of Daisy Town, a merry and unruly frontier settlement where the law of the strongest and loudest holds sway. Jolly Jumper is not only Luke's trusty horse, but also the brains of Daisy Town. A thinker and philosopher, he is always one jump ahead of everyone else. But - a shadow looms over the town: The four Dalton Brothers, a fearsome quartet of bandits, are the sworn enemies of Luke, who is constantly trying to thwart their devilish plans and their spectacularly clumsy escapes from the Daisy Town Jail. The female touch is provided by Lotta Legs, the saloon owner. She is hopelessly in love with Luke, and continually frustrated by his total lack of romanticism. This fractious band find itself caught up in a series of misadventures, crossing paths with hordes of wacky friends and fiendish enemies.