Buster Keaton's final silent feature, as well as the final film in which MGM allowed him any creative control.。一群守护者的任务是保护一名必须向国王传递重要信息的信使。在穿越古老土地的旅程中，他们面临着一场充满瘟疫、黑暗魔法和邪恶怪物的战斗。。
