When a senator comes up with a probation program to redeem criminals in the USA, the Supreme Court offers him a chance to prove the feasibility of his idea... by trying it out on the worst Old West villains the Daltons. As usual, it’s up to Lucky Luke to keep an eye on the terrible four during their month-long trial period. If they can refrain from any crime during that time, they will be set free as good citizens...
René Goscinny (1926 - 1977) was a French author, editor and humorist, who is best known for the comic book Asterix, which he created with illustrator Albert Uderzo, and for his work on the comic series Lucky Luke with Morris (considered the series' golden age).