Belle, Cheyenne, Django, Doc, Ghost, Mei and Tuco, the famous seven bandits, still escape the hands of the Sheriff. The shots are fired aboard the Union Pacific in the middle of the Old West! But this time the train conductor gave the order to unhook the carriages one after the other to protect the passengers. Some bandits find themselves thrown from the train by rival fire, others did not leave the caboose in time, still others, in a bad maneuver, jump in spite of themselves ...