The Cheyenne are convinced that newly-arrived settlers have been killing the buffalo they traditionally depend on. When the Native Americans surround the 20th Cavalry’s fort, Lucky Luke realises that someone who bears a grudge against Colonel McStraggle has conveniently provided them with firearms. Worse, the traitor also knows the layout of the fort. Lucky Luke does his best to try and break the deadlock before the soldiers starve. As in other “Lucky Luke” volumes, readers discover different aspects of the United States’ conquest of the Wild West.

Lucky Luke and Jolly Jumper arrive in Grass Town and make the acquaintance of Smith I, Emperor of the United States! A local rancher gone a bit looney after getting rich, he’s given his cowboys fancy uniforms and replaced their Colts with sabres, and he believes he’s the true ruler of the country. The citizens of Grass Town think he’s great fun, write him letters in the names of European monarchs, and publish his harmless proclamations in the newspaper. But is he truly harmless? And what will Luke do if something upsets the relationship between the Emperor and his not-so-loyal subjects?

Austrian Professor Otto von Himbeergeist arrives in the New World with some very strange ideas: Criminals are victims of their past and can be cured of their lawlessness. To prove his theories, the scientist intends to travel to the Wild West and attempt to reform the worst possible outlaws of the land. What better targets than the baddest, dumbest bandits ever, the Dalton brothers? And who will be tasked with keeping a close watch on the experiment, with some unexpected but always hilarious results? Why, Lucky Luke, of course!

On a cattle drive to New Mexico, Lucky Luke travels through Langtry, home of self-appointed judge Roy Bean. A crook and a cheat who invents laws and concocts offences, Bean arrests Luke and confiscates his herd. But he doesn’t count on the arrival of another crook and cheat intent on poaching the old man’s game. It will be up to our favourite cowboy to sort it out and bring real law west of the Pecos River at last.

Plagued by constant bandit attacks, Wells Fargo is falling on hard times. To restore public trust in their services, the company sends one well-publicised stagecoach from Denver to San Francisco. It will have the best “whip” as driver, a motley crew of daring passengers, and—to escort them and a precious cargo of gold—none other than Lucky Luke. A wise precaution, because every desperado in the country will be waiting on the coach’s planned route…

When a huge bounty is posted on a Cheyenne man for the apparent theft of a pedigree horse, the bounty hunter Elliot Belt will stop at nothing to pocket it–not even at triggering a new Indian war if he has to. Lucky Luke must juggle keeping him in check, appeasing the irate Cheyenne, and trying to save the suspected thief from Old West-style summary justice. A cheerful homage to the golden age of Hollywood westerns.

At the end of the Civil War, many former soldiers turn to a life of crime to survive. Joss Jamon and his gang are among the worst of such men. After sacking the town of Los Palitos, they arrange for Lucky Luke to be arrested for their crimes. The lonesome cowboy, a rope already around his neck, is forced to make a deal with the angry citizens: Bring the real bandits back within six months or hang.

Bob, Grat, Bill and Emmett Dalton were fearsome bandits; terrors of the Old West; legends in their own time. Until Lucky Luke put a final end to their reign of evil.Joe, Jack, William and Averell Dalton, on the other hand, aren’t even footnotes in the back pages of newspapers. Bumbling, blundering and hapless, they nonetheless vow to emulate—and avenge—their prestigious relatives. But if their cousins couldn’t best the Lonesome Cowboy, do they really stand a chance?

Grand Duke Leonid of Russia is in Washington to sign a commercial treaty on behalf of the Tsar. But this larger-than-life aristocrat has read too much Fennimore Cooper and wants to visit the West. The US government is forced to agree to his whim—but wisely chooses Lucky Luke to escort him to the cattle capital of the West: Abilene. A good thing, too, because the Russian Grand Duke encounters real American desperadoes on his visit!

“The Daltons have escaped!” Words that all fans of Lucky Luke know well. But this is the story of the first time that the idiotic brothers break out of jail. Driven by Joe’s unshakable need to get revenge on Lucky Luke, the outlaws terrorise several towns before hatching a genius plan: Get the Lonesome Cowboy his very own wanted poster. As the local populace begins turning on him, Luke will display infinite patience in order to catch his quarry.

It’s the start of the 1860s, and the Old West is changing—a change that comes as a shock to the Daltons when they’re arrested not by Lucky Luke, but by… Allan Pinkerton! The man is determined to turn bandit-hunting into a modern, rational business—even at the cost of the American people’s personal freedom. It’ll be up to Lucky Luke to ensure that the USA is protected against all evil-doers, rascals and lawmen alike…

The First Transcontinental Railroad is stopped dead near its starting point, both in the East and in the West. Repeated injunctions from the president of the “Transcontinental Railroad” are having no effect: His workers are constantly prevented from working by agents of a mysterious traitor. But Lucky Luke witnesses one of the acts of sabotage and stops it. Soon, he is in charge of security for the entire westward push—and he will have his work cut out for him!

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!

A general amnesty puts the Daltons back on the streets, something Lucky Luke isn’t happy about. And, to make it worse, they seem to have become model citizens. It’s all an act, though, and it doesn’t take long for the stupidest quartet in the West to be back behind bars. Luke is already riding off into the sunset… But he’s not counting on a riled-up Apache tribe that attacks the penitentiary where the Daltons are locked up…

1861. Abraham Lincoln orders that the First Transcontinental Telegraph line, currently interrupted between Nevada and Nebraska, be completed. Two teams, one heading east from Carson City and the other west from Omaha, will meet up in Salt Lake City. Lucky Luke joins the eastbound team. But when a $100,000 reward is offered to the first team to arrive, there’s suddenly more to fear than the natural obstacles of the journey: A saboteur seems to be at work!

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 ever: 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...

“Fingers” is a magician—a really, really good one. When his unfortunate kleptomania sends him to jail, he meets the Daltons and soon escapes with them. After Lucky Luke puts everyone back behind bars, he takes pity on Fingers’ unfortunate tendencies and agrees to try to rehabilitate him. A daunting, frustrating task, for confusing and complicating matters is second nature to a magician. Riding off into the sunset is going to be a difficult trick this time!

In this early adventure of the famous cowboy, Lucky Luke is dealing with one of the plagues of the Old West: quacks. “Doctor” Doxey is a con man, a charlatan who brews up useless elixirs and sells them as miracle cures for every ailment known to man. But he doesn’t stop at that and occasionally causes illnesses himself, the better to cure them—a behaviour that does not sit well with Luke...

Ulysses S. Grant’s second term is ending, and the USA must elect a new president. After the many corruption scandals of the previous administration, the Republican Party has selected an upstanding candidate, Rutherford B. Hayes. However, a rich Texas oil tycoon with his eye on the White House has other ideas, and money can buy many votes... or bullets. Luke is called upon to protect Hayes as he tours the wild, wild West...

In Bottleneck Gulch, there’s a saloon where the owner is a crook of the worst order. When a second saloon opens, our crook isn’t happy that someone’s selling proper whisky cheaper than his own rotgut. To get rid of the competition, he calls upon an oversized gunman for hire, Phil Wire. But the killer runs afoul of Lucky Luke, who decides to take his place in order to clean up the town—only, not the way his employer expected!