This work presents the adventures of the world's greatest cowboy, the comic character who can shoot faster than his own shadow. Exploring with his horse Jolly Jumper and always searching for new adventures, Lucky Luke encounters two suspicious characters, Denver Miles and Colorado Bill. Together they reach the outskirts of an abandoned town, Gold Hill, which has only one resident. The old man, Powell, is the sole survivor of a gold rush he has not given up on, despite years of unsuccessful attempts. He continues to work in his mine, which Denver and Colorado will soon try to seize by any means possible. However, Lucky Luke, who has taken a liking to the old man, keeps an eye on him and will save him from many adventures...