In this engaging adaptation of James Gould Cozzen's novel The Last Adam, film icon Will Rogers portrays Dr. George Bull, a compassionate, highly regarded small-town physician who often prescribes a healthy dose of common sense! But when Bull begins dating a widow (Vera Allen), the local gossips misconstrue the story. To make matters worse, Bull's plainspoken manner earns him an enemy in the wealthy owner of a nearby construction camp. But once it's learned that the camp has caused illness by polluting the local water supply, the good doctor steps in to try to restore the town's health - and his reputation!

Writer and philosopher Voltaire, loyal to his king, Louis XV of France, nonetheless writes scathingly of the king's disdain for the rights and needs of his people. Louis admires Voltaire, but is increasingly influenced against him by his minister, the Count de Sarnac.