Two rival families live in Painful Gulch: the O'Timmins clan, who have big noses, and the O'Haras, who have big ears. They've been fighting for decades and don't even know why anymore. Lucky Luke is appointed mayor in order to bring peace back to the town. But the men and their thick-headed sense of honour will wreck all of Lucky Luke's plans for reconciliation. Our hero must find a solution!